1. C (Bị động QKĐ: was/were + p.p; các phương án khác không có verb chia dạng p.p)

2. A (What + (a/an) + adj + N! = How + adj + N + tobe!)

3. A (Although + Clause, Clause = Despite/In spite of + N/V_ing, Clause)

4. C (for + khoảng thời gian: HTHT; khoảng thời gian + ago: QKĐ)

5. B (If1: If + S + V(s,es), S + will + V(inf), ta đổi mệnh để if và mệnh đề chính với nhau; dựa vào nghĩa để chuyển cho phù hợp: nếu trời không tốt `->` không tổ chức, nếu trời tốt `->` tổ chức)

6. B (Ta dựa vào nghĩa để đổi: Có chiếc máy nào rẻ hơn không? = Đây có phải là chiếc rẻ nhất mà bạn có?, do you have để bổ sung nghĩa đầy đủ hơn; TĐT + s.one + have + so sánh hơn? = Tobe + so sánh nhất + TĐT + s.one + have?)

7. B (S + have s.one do s.th `->` S + have s.th + p.p; dạng câu này chúng ta không đề cập đến người làm hành động)

8. C (This is the first time + S + have/has + p.p = S + have/has + not + p.p + before)

9. A (leave s.one/s.th adj: để cho ai/cái gì như thế nào, kiểu ra lệnh)

10. B (So sánh ít hơn: S + V + less + adj/adv + than + S2 + (V)

11. C (Bị động TLĐ: will be + p.p)

12. B

13. B (Tag question `->` Yes/No question; S + V, TĐT + pronoun? = TĐT + S(pronoun) + V?)

14. C (TTSH + N = N + tobe + ĐTSH)

15. B (Đề nghị: Let's + V(inf)! = How/What + about + V_ing? = Why don't we + V(inf)? = suggest +  V_ing)

16. C (How far is `..._1` to `..._2`?: Từ`...._1` đến `..._2` là bao xa?)

17. B (Bị động TLĐ)

18. A (tobe interested in s.th/doing s.th: hứng thú cái gì; find s.th adj_ing: thấy cái gì ntn `->` Các phương án còn lại sai)

Ex5. Rewrite these sentences begin with the words given so that they have the same meaning as the first ones.
1. My mother gave me a very nice watch yesterday.  
A. I was gave a very nice watch yesterday.          
B. I was give a very nice watch yesterday.
C. I was given a very nice watch by my mother yesterday.
D. I was give a very nice watch by my mother yesterday.
2. What a thick book!
A. How thick the book is! B. How the book thick is! 
C. How the book thick!  D. How thick book is!
3. Although he took a taxi, Peter arrived late for the concert. 
A. In spite of taking a taxi, Peter arrived late for the concert. 
B. In spite of taking a taxi, Peter arrives late for the concert.
C. In spite taking a taxi, Peter arrived late for the concert.
D. In spite of took a taxi, Peter arrived late for the concert.
4. I met Frank three years ago and we are still friends.
A. Frank and I have been friends three years ago.                
B. Frank and I are  friends three years ago.
C. Frank and I have been friends for three years.     
 D. Frank and I had been friends three years ago.
5. The garden party won’t take place here if the weather doesn’t improve.
A. If the weather improves, the garden party won’t take place here.
B. If the weather improves, the garden party will take place here.
C. If the weather doesn’t improve, the garden party willt take place here.
D. If the weather not improves, the garden party won’t take place here.
6. Do you have a cheaper computer than this?  Is this___________?
A. the cheapest computer B. the cheapest computer you have
C. the cheaper computer you have D. as cheap as computer
7. They had these men paint their house last month.  They had ___________
 A. their house paint last month.          B. their house painted last month.
C. their house paint last monthby these men      D. their house paints last month.
8. I haven’t eaten this kind of food before.   This is the first time ___________
A. I haven’t eaten this kind of food. B. I  eat this kind of food.
C. I haven’t eat this kind of food. D. I have eaten this kind of food.
9. I'll call the police  if you don't___________
A. leave me alone. B. live me alone.         C. left me alone. D. leaved me alone.
10.  Jill drives more carefully than Jack does.  Jack drives ___________
A. less carefully than Jill is. B. less carefully than Jill does.
C. less careful than Jill does. D. more carefully than Jill does.
11. We will use renewable energy in the future.
A. Renewable energy will use in the future     
B. Renewable energy will be use in the future
C. Renewable energy will be used in the future  
12. Although they are short, they still love playing sports.
A. In spite of they are short, they still love playing sports 
B. In spite of being short, they still love playing sports. 
C. Despite they are short, they still love playing sports
13. A group of foreigners visited the slums last week, didn’t they? 
A. A group of foreigners visit the slums last week, didn’t they?    
B. Did a group of foreigners visit the slums last week?
C. A group of foreigners visit the slums last week?
14. This is our school.
A. This school is mine B. This school is our  C. This school is ours
15. Let’s go to the school cafeteria.
A. We suggest to go to the school cafeteria.
B. How about going to the school cafeteria?
C. Why don’t we going to the school cafeteria?
16. What is the distance between Ha Noi and Vinh?
A. How long is it from Ha Noi to Vinh?
B. How is it from Ha Noi to Vinh?
C. How far is it from Ha Noi to Vinh?

17. They will use solar energy to protect the environment.
A. Solar energy will used to protect the environment.
B. Solar energy will be used to protect the environment.
C. Solar energy will using to protect the environment.
18. I find English interesting. 
A. I am interested in English.       B.I find interesting English.         C.I find English interested.