To: Jeff Dorey
From: Jonathan Phillips
Subject: Machine Learning Presentation
Thank you for your presentation on September 15.
We were very interested in your idea of using machine learning for marketing.
We learned a lot from your talk. Now we think we should change our data policy.
Our Miami branch manager, Mr. David Turner, also joined your talk.
He was very impressed with your examples of neural networks and regression.
He will send you an e-mail to ask you to give the same talk in Miami.
We are happy to meet you again.
Thank you again for your presentation.
Jonathan Phillips
Sales Department Manager
⸻
Questions
-
What is the main purpose of this e-mail?
(A) To ask Mr. Turner to record the talk
(B) To say sorry for the change of date
(C) To thank for the talk and introduce the branch manager
(D) To get more information on the talk -
Who is Jonathan Phillips?
(A) The sales department manager
(B) The market researcher
(C) The branch manager
(D) The accounting manager
⸻
解説
153 → (C)
本文は「プレゼンに感謝」＋「支店長を紹介」。だから (C)。
154 → (A)
署名に「Sales Department Manager」とあるので営業部長。
INTEROFFICE MEMO
Please follow the instructions below to help conserve GPU time and memory usage:
• Turn off your Jupyter server when you leave your desk.
• Keep batch size moderate (e.g., 32) during training in August, since servers may overheat.
• Try to limit each experiment run to three hours unless necessary.
• Use mixed precision to cut down on memory.
• When preparing datasets, reduce the size of images and then put them together into a master dataset.
• Make only the necessary number of copies of the dataset by referencing the master dataset.
⸻
Q155
Who is this memo intended for?
(A) Office employees
(B) Machine learning researchers
(C) GPU hardware vendors
(D) Telephone operators
⸻
Q156
What instructions are on this memo?
(A) Methods of saving company expenses
(B) Directions on how to use copy machines
(C) Methods of conserving computational resources
(D) Basic programming usage
⸻
Q157
What is written on this memo?
(A) Use synthetic data instead of collecting real data
(B) Avoid running personal experiments on shared servers
(C) Refrain from using office email accounts for personal use
(D) Minimize the number of dataset copies made
⸻
解説
• Q155
Memoは「GPU時間やメモリ節約の指示」なので、対象は (B) Machine learning researchers。
• Q156
指示は「バッチサイズ縮小」「mixed precision使用」「コピー数削減」など資源節約に関するもの。正解は (C) Methods of conserving computational resources。
• Q157
本文で「必要な枚数だけコピーを作る」とある。つまり (D) Minimize the number of dataset copies made が正解。
Letter
AI Research Lab – Newsletter
Dear Ms. Alison Lawrence,
We are pleased to inform you of a special access offer for our Machine Learning training platform.
This offer is only for users like you who have already completed training modules worth 300 points on our AI platform.
We provide a wide range of resources, from basic linear regression to deep learning strategies, all at an unbeatable value. We enclose a discount code together with our Summer AI Training Catalog.
Your 50% discount code is only valid from August 16 through 29! Hurry and take advantage of this opportunity. Register now while seats last. There is no time to lose!
Fill in the registration form on the back of this letter and send it with the discount code, or fax it with the discount code to 145-3867.
Sincerely,
Mark Brown
AI Research Lab – Sales Manager
⸻
Questions
-
How long is the offer valid?
(A) For 40 days
(B) For two days
(C) Until the end of August
(D) For two weeks -
What is suggested in the letter?
(A) All users received the letter
(B) A 50% discount coupon is enclosed
(C) Customers must pay full price in advance
(D) The offer is limited to AI engineers only -
Where is the registration form found?
(A) In the catalog
(B) On the reverse side of this letter
(C) On the bottom of this letter
(D) In the prepaid envelope
⸻
解説
• Q158: 「valid from August 16 through 29」とある → 14日間 = two weeks。
• Q159: 「We enclose a discount code together with…」と書いてあるので → B が正解。
• Q160: 「Fill in the registration form on the back of this letter」とあるので → B が正解。
⸻
正解
158: (D) For two weeks
159: (B) A 50% discount coupon is enclosed
160: (B) On the reverse side of this letter
Welcome to the newly updated AI Research Hub
Located just 8 miles from the University AI Campus, our research hub is minutes away from major labs and tech companies in the downtown innovation core.
Each modern training room is equipped with GPUs, high-speed Internet, and interactive whiteboards. Our participants can also enjoy free access to the AI Fitness Program, where mental and physical training go hand in hand.
The hub offers a wide range of facilities:
• TensorFlow Lab
• PyTorch Lab
• Quantum Computing Test Center
• Fitness Center
• Co-working Spaces
• On-site Data Library
SPECIAL OFFERS
Holiday Advanced Registration – rates from $95 per course.
Don’t miss this chance to join our Winter AI Training Sessions:
• October 1–25 → rates from $95 per course
• November 1–15 → rates from $115 per course
• December 1–27 → rates from $135 per course
⸻
Questions 161–164
-
The word “core” in paragraph one is closest in meaning to:
(A) center
(B) circle
(C) triangle
(D) event -
What is stated about this AI hub?
(A) Participants can use the AI Fitness Program for free.
(B) Pets are not allowed in the building.
(C) The hub offers ocean-view research rooms.
(D) Visitors receive a free printed newspaper. -
What is the cheapest rate for November 3?
(A) $95
(B) $100
(C) $115
(D) $135 -
What is the main purpose of this advertisement?
(A) To encourage people to register for AI training courses
(B) To announce that the hub has been recently updated
(C) To promote a special social membership card
(D) To notify participants about the hub’s location
⸻
解説
• 161: “innovation core” → 中心地。正解は (A) center。
• 162: 本文に “free access to the AI Fitness Program” とある。正解は (A)。
• 163: November 1–15 の料金は $115。したがって 11月3日は (C) $115。
• 164: 本文は「Don’t miss this chance to join our Winter AI Training Sessions」と、参加を促している。正解は (A)。
Online AI Dashboard is for you!
Our AI Dashboard enables researchers to monitor and train their models anywhere and anytime!
No more waiting for cluster access! Save time!
SERVICES
• View your model performance metrics, GPU usage, and dataset size.
• Schedule and run up to 10 training jobs simultaneously, or set automatic retraining.
• Check your experiment history and version logs.
• Receive evaluation reports from integrated monitoring services with our E-system.
• You can update metadata (e.g., project name, contact info) by filling out the online form.
⸻
Questions 165–166
-
What service is NOT included?
(A) Researchers can review details of their experiment history.
(B) Researchers can receive a monthly online newsletter.
(C) Researchers can run up to ten training jobs at once.
(D) Researchers can check model performance metrics 24 hours a day. -
How can researchers report metadata changes such as a new project contact number?
(A) By phone
(B) By regular mail
(C) Through the Internet
(D) In person
⸻
解説
• 165: 本文には「experiment history」「monitoring reports」「up to 10 training jobs」とあるが、「newsletter（ニュースレター）」は書かれていない → (B) が正解。
• 166: 本文に「update metadata … by filling out the online form」と明記されている → (C) Through the Internet が正解。
Notification of Suspension of AI Training Services
During the Week of March 16–23
The Dolphin AI Research Lab wishes to thank all its users for their continued support and to let you know that we appreciate your work with our platform.
The lab management has decided to upgrade the model training infrastructure with new parallelized GPU clusters and the latest regularization filters to ensure faster convergence of models and to avoid overfitting.
We also plan to take this opportunity to collaborate with a major hardware manufacturer to install new storage and monitoring tools. New fault-tolerant servers with safety railings will be installed, along with energy-efficient lighting for the data center. Additional metadata storage will be provided and a new visualization dashboard will be added.
However, during the week necessary to make these improvements, the AI training service will be suspended. We ask for your patience and understanding, and we look forward to welcoming you again when the system reopens.
All the staff at the Dolphin AI Research Lab apologize for any inconvenience this may cause.
⸻
Questions 167–169 (Machine Learning)
-
When will the AI Research Lab suspend services?
(A) The beginning of March
(B) The week of March 16
(C) After March 23
(D) The last week of March -
Why is the AI Research Lab suspending services?
(A) The GPU cluster is broken.
(B) The datasets are corrupted.
(C) The lab went bankrupt.
(D) The lab has decided to improve training infrastructure. -
What is NOT true about the notification?
(A) State-of-the-art monitoring tools will be installed.
(B) A new visualization dashboard will be added.
(C) Energy-efficient lighting will be installed.
(D) This notice is for the general public.
⸻
解説
• 167: 本文に「During the Week of March 16–23」と明記 → 正解は (B) The week of March 16。
• 168: サービス停止の理由は「upgrade infrastructure (新GPUクラスターや正則化フィルターを導入するため)」 → 正解は (D)。
• 169: 本文にあるのは「monitoring tools」「dashboard」「energy-efficient lighting」。しかし「general public」ではなく「registered users」向け → 正解は (D)。
AI Research Center
is seeking model trainers!
Applicants must be at least 18 years of age.
Applicants must possess a valid Python / TensorFlow (or PyTorch) license.
A high level of data communication and collaboration skills is required.
At least one year of training experience with machine learning models is preferred.
Responsibilities:
• You must be skilled professionals who put the highest priority on safety and reliability of models.
• You must respond to user needs in accordance with research policies and procedures.
• You must read and familiarize yourself with dataset maps and model schedules.
• You must ensure that loss functions are properly optimized, and gradients checked.
• You must work on weekends and holidays when experiments are scheduled.
Hours of work:
This job requires a 7-day week, covering a variety of training shifts from 5 A.M.–4 A.M..
Work assignments are based on a priority/seniority system.
Note: Applicants are encouraged to download an Information Package at: www.ai-lab.com.
For further information, please call Mr. Mark Anderson between 8:30 A.M. and 4:30 P.M. at 020-7543-2245.
Please send your CV + GitHub link to positions@ai-lab.com on or before June 6.
⸻
Questions 170–173 (Machine Learning Version)
-
What position is available?
(A) Data annotator
(B) Model trainer
(C) Chatbot operator
(D) Hardware engineer -
What is NOT a requirement for applying?
(A) A special ML framework license
(B) Good collaboration ability
(C) A minimum age of 18
(D) Exactly one year of ML work experience -
What is NOT included in the responsibilities?
(A) Studying dataset maps
(B) Making sure gradients are properly checked
(C) Being available on weekends
(D) Designing and creating dataset maps themselves -
When is the deadline for applying?
(A) June 5
(B) June 6
(C) June 7
(D) June 8
⸻
解説
• 170: 募集しているのは「drivers」→ ML版では model trainer → 正解 (B)。
• 171: 求められているのは「免許（framework license）、コミュニケーション能力、18歳以上」だが「1年の経験」は「preferred（望ましい）」で必須ではない → 正解 (D)。
• 172: 責務にあるのは「ルート（データセット）を読む」「運賃（loss最適化）を確認」「日曜勤務」。しかし「地図そのものをデザインする」は含まれていない → 正解 (D)。
• 173: 締め切りは「on or before June 6」→ 正解 (B)。
Cosmo University – Department of AI & Data Science
Dear Alumni,
We are preparing a new Alumni Model Directory, which will enable former students to keep in contact and collaborate on machine learning projects.
The directory will include three categories: Personal (contact info), Educational (academic background), and Professional (AI/ML career).
To design a more practical alumni network that supports AI research and deployment, we ask you to complete the enclosed Alumni Data Questionnaire.
We plan to publish the new directory around Christmas season.
Therefore, please submit your response by October 1 so that the project can be completed successfully.
Your cooperation will help us create a strong alumni database for future AI innovation.
Sincerely,
Kenneth Miller
Coordinator, Cosmo University AI Alumni Association
⸻
Questions 174–176 (Machine Learning Adaptation)
-
Who is this letter being sent to?
(A) Alumni (graduates)
(B) High school students
(C) Faculty members
(D) Sponsors -
When will the new directory be available?
(A) June
(B) July
(C) November
(D) December -
Which of the following is clear from the letter?
(A) Cosmo University is collecting donations for the new directory.
(B) Cosmo University is creating a comprehensive alumni database.
(C) Cosmo University has five departments.
(D) Cosmo University has the largest number of students in Australia.
⸻
解説
• 174: 宛先は Alumni (卒業生)。高校生や教員、スポンサーではない → 正解 A。
• 175: 本文に「クリスマス頃に発行」とある → 12月 → 正解 D。
• 176: 「comprehensive alumni database」を作成すると明記されている → 正解 B。
Passage
Yesterday, due to a sudden system crash, the research team’s training experiment was switched from ImageNet models to CIFAR and MNIST tasks.
The announcement of this change was posted on the AI Lab’s internal website the night before. However, most participants only realized the change at the time of experiment launch.
Several researchers complained about this modification. The lead engineer, Mary Clancy, was unaware that participants had not been informed and immediately contacted the research coordinator after the problem was discovered.
The lab insisted that all participants should have checked the internal website in advance, since this was explained when they registered for the project. However, those who registered offline claimed that they were not notified; only those who signed up online were aware.
The lab agreed to refund fees to those who canceled, but ultimately 90% of the researchers continued with the modified experiment.
One researcher from London, Cliff White, commented: “If I had known, I would have chosen a Natural Language Processing project instead.”
Another participant, Judith Turner from Australia, said: “I really wanted to test ResNet on ImageNet. Participants should have been notified by direct e-mail or phone call. I only joined the session because I had no backup experiment for that day.”
⸻
Questions 178–180
-
Where did most participants find out about the change?
(A) On bulletin boards in the lab
(B) At the front desk
(C) On the AI Lab’s website
(D) At the time of experiment launch -
What can be inferred from this article?
(A) The lab forgot to update their website.
(B) 90% of the participants were satisfied with the change.
(C) 10% of the participants canceled the experiment.
(D) Most participants registered online. -
What can be inferred about Ms. Turner?
(A) She had no backup plan for that experiment.
(B) She is an experienced ML engineer.
(C) She wanted to work on NLP instead of CV.
(D) She has tested ResNet before.
⸻
解説
• 178: 文中に「most participants only realized … at the time of experiment launch」とある → 正解 (D)。
• 179: 「The lab agreed to refund fees … 90% continued」→ 10%がキャンセルしたことが読み取れる → 正解 (C)。
• 180: Turner は「I only joined … because I had no backup experiment」で代替案がなかったと述べている → 正解 (A)。
⸻
From: Linda Jackson
To: Matt Samuels
Subject: Schedule
Date: April 2
Our monthly meeting will be held on April 23 (Mon), 2:00 PM in North Building, 5th Floor, Room C.
Agenda:
1. 2:00–2:30 … Sales Report
2. 2:30–3:00 … Promotion of New Products
3. 3:00–3:30 … Opening of Florida Branch
4. 3:30–4:00 … Planning the 25th Anniversary Ceremony
As agreed in the last meeting, please bring a copy of your proposal for the 25th anniversary ceremony. We understand you are busy with the Florida branch, but bring any draft you have.
Also, I made a dinner reservation at the Chinese restaurant “Shanghai” on Montreal Street (Imperial Hotel) from 6:00 to 8:00 PM. I heard it is excellent.
⸻
Graph (Quarterly Sales)
Sunflower AI Company - Quarterly Revenue
(単位: Million USD)
60 |
55 |
50 | █
45 | █
40 |---------+---------+-------█-----+----- ← Target (40)
35 | █ █
30 | █ █
25 | █
20 | █
15 | █
10 | █
5 | █
+--------------------------------------
Q1 Q2 Q3 Q4
⸻
Questions
- What kind of company does Ms. Jackson work for?
(A) A Chinese medicine company
(B) A flower manufacturer
(C) A mail-order AI company
(D) A tire manufacturer
⸻
- Why did Ms. Jackson make a reservation at a Chinese restaurant?
(A) Mr. Samuels asked her to do so
(B) The restaurant is famous for its service
(C) She heard it was excellent
(D) Her friend owns the restaurant
⸻
- Which of the following is NOT true?
(A) The meeting will be held on April 23
(B) There are four agenda items
(C) Mr. Samuels is a branch manager
(D) They will discuss how to promote new products
⸻
- In which quarter did the company’s sales exceed the target?
(A) Q1
(B) Q2
(C) Q3
(D) Q4
⸻
- What is the main purpose of this e-mail?
(A) To notify Mr. Samuels of the meeting schedule and agenda
(B) To promote the Shanghai restaurant
(C) To ask for donations for the anniversary event
(D) To announce the opening of the Florida branch
⸻
解答と解説
• 181: (C) 文中に「Sunflower Flower Company」→ ML版で「mail-order AI company」
• 182: (C) 「料理が素晴らしいと聞いています」とある → 正解 (C)
• 183: (C) サミュエルズ氏は「支店長」とは書かれていない → 正解 (C)
• 184: (C) グラフからQ3で45と目標40を超える → 正解 (C)
• 185: (A) 本文冒頭で会議スケジュールと議題を通知 → 正解 (A)
⸻
Invoice – AI Training Courses (November)
Date Course Hours Amount
11/04 Python for ML Part 5 5h $350
11/11 Neural Networks Part 6 5h $350
11/18 Python for ML Part 6 5h $350
11/25 Research Writing for Proposals 4h $280
Total: $1330
⸻
Letter – Regarding Invoice Error
From: Matt Gomez (HR Manager)
To: Billing Department, AI Training Center
Date: December 1
Since September, I have been attending AI training courses and have been very satisfied with Dr. Ikuko Chen’s wide knowledge, experience as a business interpreter, and her patience and positivity.
However, the invoice I received for November states that I attended four courses, but in reality, I only attended three. There was no class conducted on November 11, so I believe I have been overcharged $350.
As my reporting deadlines are around the 20th of each month, my workload becomes very heavy at that time. This is why I was unable to attend some lessons, which I regret because they are always interesting and useful.
If possible, please send me a corrected invoice. I am attaching the feedback form for the Business French training course together with this letter, as requested.
P.S. According to the new contract, I am supposed to attend only two training sessions in December. Please revise the contract if necessary.
Sincerely,
Matt Gomez
HR Manager
CHC Chemicals Ltd.
186. What is probably NOT included in the training courses?
(A) How to make a public academic presentation
(B) How to answer phone calls
(C) How to write a complaint letter
(D) How to make an inquiry
⸻
- What can be inferred about Dr. Chen?
(A) She is not an experienced lecturer.
(B) She is respected by the students.
(C) She is a substitute teacher.
(D) She has Japanese parents.
⸻
- When was no workshop conducted?
(A) November 4
(B) November 11
(C) November 18
(D) November 25
⸻
- Why has the number of classes decreased?
(A) The budget is limited.
(B) Employees often go out of town on business trips.
(C) Employees are busy doing paperwork.
(D) The classes were less popular than expected.
⸻
- What did Mr. Gomez request in his letter?
(A) A refund of $280
(B) A corrected invoice
(C) A change of trainer
(D) More lessons in December
⸻
解説
• 186: Invoice/letter内容は「Python/ML/Research Writing」などで、電話応対は出てこない → 正解 (B)。
• 187: 手紙には「very satisfied with Dr. Chen’s wide knowledge, patience, positivity」＝尊敬されている → 正解 (B)。
• 188: 「There was no class conducted on November 11」→ 正解 (B)。
• 189: 「reporting deadlines around the 20th make workload heavy」＝社員が事務作業で忙しい → 正解 (C)。
• 190: 「please send me a corrected invoice」→ 正解 (B)。
AI Research Center – Fax & E-mail
Fax Message
To: Customer Service Dept.
From: Samantha Easton
Subject: VisionNet Model Training Error
Date: 9/12
Two days ago, I sent an e-mail inquiry about the VisionNet model but have not received a reply.
Six months ago, I purchased the VisionNet package (with ImageNet-like dataset + optimizer). I didn’t use it for a month, but three days ago, when I tried to run training, the gradients became unstable and the loss diverged. The next morning, my computer crashed. I had to pay $20 for diagnostics. I request reimbursement.
I always kept my GPU at 29°C room temperature. Was that the problem? Should I have stored the dataset differently? I checked the manual, but there was no mention of storage.
I have used your ML products for three years, and this is the first time such an issue occurred. I would like to know the cause; otherwise, I may stop using your platform.
Inquiry form:
Product name: VisionNet ML Package
Product ID: VSN543234-4KR978
Phone: 072-684-6543
E-mail: momopeachy@ml-lab.org
Name: Samantha Easton
⸻
E-mail Reply
To: Ms. Easton
From: Aaron Gray
Subject: VisionNet ML Package
Date: 9/12
Thank you for your fax. I apologize for the late reply; I was away on business.
First, about your question: the model can be stored at room temperature, no refrigeration is required.
We checked the product ID. It shows that the “support period” expired three months ago. The manual states that expired models or datasets should not be used. Since our ML packages use only natural (unmodified) datasets, the system became unstable. Therefore, we cannot reimburse the diagnostic fee.
However, you are an important customer. To support you, we will send you a replacement model package. Please let us know your delivery address.
Sincerely,
Aaron Gray
AI Research Center
⸻
Questions 191–195 (Machine Learning Adaptation)
- According to the fax, what changed about the ML package?
(A) The color of the interface
(B) The container of the files
(C) The stability of the model training
(D) The smell of the dataset
⸻
- What does Ms. Easton think she should have done with the package?
(A) Train it every day
(B) Keep it in a cooler environment
(C) Dilute the dataset with water
(D) Add synthetic data as preservatives
⸻
- According to the e-mail, why did the package become unstable?
(A) It contained many preservatives.
(B) It was wrapped in paper.
(C) It used only natural datasets.
(D) It had expired.
⸻
- What does Mr. Gray need to be informed of?
(A) The purchase date
(B) Ms. Easton’s bank account number
(C) Ms. Easton’s delivery address
(D) Ms. Easton’s e-mail address
⸻
- What can be inferred about Ms. Easton?
(A) She will receive a reimbursement.
(B) She has purchased AI products from the company in the past.
(C) She last sent an e-mail to Mr. Brown on September 8.
(D) She will receive a newly released product.
⸻
解説
• 191: Faxには「gradients unstable, loss diverged」→ モデルの安定性が変化 → (C)。
• 192: Eastonは「冷蔵庫保存すべきだった？」と考えていた → 涼しい場所に置くべき → (B)。
• 193: E-mailで「support period expired」「uses only natural datasets」→ 原因は自然データかつ期限切れ → (D)。
• 194: Grayは「Please let us know your delivery address」→ 配送先住所が必要 → (C)。
• 195: 「I have used your ML products for three years」→ 過去にも購入している → (B)。