Mình ghi câu trả lời luôn nhé.Không biết đúng hay không nhưng bạn cứ tham khảo thôi nhé.

Exercise 2:

4)The man was not a stranger to her.The man wasn't a stranger to her .

5)It was not a pleasant day.It wasn't a pleasant day .

6) The sea was not very rough.The sea wasn't very rough.

7)He was not a tall man.He wasn't a tall man.

16) Bert was not an old friend of the family.Bert wasn't an old friend of the family.

Exercise 3:

2)listened

3)talked

4)wants

5)have lived

6)are going to expect/will expect

7)lasts

8)change

9)liked

10)wait

11)paint

12)arrives

13)watched

14)studied

15)mail

16)learned/learnt

17)married

Chúc bạn học tốt!!!

Exercise 2:

2. These doors were not closed. These doors weren't closed

3. The exercises were not easy to do. The exercises weren't easy to do

4. The man was not a stranger to her. The man wasn't a stranger to her

5. It was not a pleasent. It wasn't a pleasent

6. The sea was not very rough. The sea wasn't very rough

7. He was not a tall man. He wasn't a tall man

Exercise 3:

2. listened

3. talked

4. wants

5. have lived

6. will expect

7. lasted

8. changed

9. liked

10. waited

11. painted

12. arrived

13. watched

14. studied

15. mailed

16. learned

17. married