Here are the answers to the questions based on the provided text:

**I. Choose the word which has a different sound in the part underlined. (0.2 pts)**
1. A. cartoon **(o)** B. look **(ʊ)** C. good **(ʊ)** D. cook **(ʊ)**
**Answer: A. cartoon**

**II. Choose the word whose main stressed syllable is different from the rest. (0.2 pts)**
2. A. forum B. stressful C. connect D. pressure
**Answer: B. stressful**

**III. Choose the best answer A, B, C, or D to complete the sentences. (1.4 pts)**
3. How often do you __________ notifications on Facebook? - Once a day
A. upload B. browse C. connect D. check
**Answer: B. browse**

4. Jane had difficulty carrying her suitcase upstairs, and Mike, her friend, offered to her.
- Mike: "Need a hand with your suitcase, Jane?"
- Jane:
A. Not a chance B. That's very kind of you C. Well done! D. I don't believe it
**Answer: B. That's very kind of you**

5. Does he __________ a book to the younger children?
A. Reads B. reading C. to read D. read
**Answer: D. read**

6. It’s __________ time, so the villagers are busy cutting and gathering their crops.
A. festival B. growing C. harvest D. planting
**Answer: A. festival**

7. Do many young people __________ walking or cycling to school?
A. fond B. enjoy C. care D. want
**Answer: D. want**

8. Social media help teens connect with others; __________, they also cause teens to feel lonely.
A. however B. therefore C. otherwise D. although
**Answer: A. however**

9. Nam and Phong are talking about their school.
Nam: "Your school is so beautiful!"
Phong:
A. Thank you B. Yes, I do C. No matter D. Not at all
**Answer: A. Thank you**

10. My sister hates __________ up early to do exercise.
A. getting B. get C. gets D. has had
**Answer: A. getting**

11. People in my village grow rice in vast __________ fields.
A. corn B. wheat C. pad D. paddy
**Answer: D. paddy**

12. A lot of young families in Viet Nam prefer __________ time doing outdoor activities together.
A. spending B. spend C. spent D. spends
**Answer: A. spending**

13. Mai: "Can I join you in this game?"
Ann: "Yes, certainly."
A. Shall you join in this game B. Will I join you in this game
C. Should you join us in this game D. They might join us
**Answer: A. Shall you join in this game**

14. They said they would join their friends; _______ they prefer surfing the net; _________ they have little time to read books.
A. however B. therefore C. because D. but
**Answer: A. however**

15. __________ slowly
A. slowly B. slower C. slowler D. slowlier
**Answer: A. slowly**

16. A call / message / spend __________ friends? - Yes, he prefers _______ them.
A. to call / B. calling / C. message / D. to call / message
**Answer: A. to call /**

17. A cow / message __________ cows on Sundays.
**Answer: (Option missing; cannot be determined)**

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