$\text{I.}$

$\text{⇒ Answer: (Xem hình)}$

$\text{II.}$

$\text{⇒ Answer: (Xem hình)}$

$\text{III.}$

$\text{⇒ Answer: (Xem hình)}$

$\text{IV.}$

$\text{⇒ Answer: (Xem hình)}$

                                    $\text{-----Done by GiaHung2k7-----}$

$\text{Cho mik xin câu trả lời hay nhất, 5 sao + cảm ơn nha.}$

18. was not having

20. hadn't studied.

II/ Hoàn thành câu

1. had built

2. hadn't been

3. had already done

4. had made

5. had put on

6. hadn't ordered

7. had learned

8. had fallen

9. Had she phoned

10. hadn't ridden

III/ Sắp xếp các câu sau và chia động từ.

1. They had turned off the light before got out of the office

2. By the time she left, I had begun the work quickly.

3. After my father finished his work, we came back home.

4. Before my brother went to bed, he had read an interesting novel. 

5. When Linh met her best friend in Bangkok, she had joined the Ever.

6. Cuong had translated this text last night before he went out.

7. Had you meet Hung before he used your email?

8. My parents hadn't had lunch when I arrived.

9. They had spoken to her before the meeting.

10. I was sure that I hadn't seen the man before. 

IV/ Tìm và sửa lỗi sai

1. I had finished my lunch before my parents come - came.

2. By the time I had found - found the key, I hadn't got into the house.

3. Up until that moment, my younger sister had never believed in love.

4. Sunny ate dinner so she wasn't - hadn't been hungry.

5. When Bob graduated in university, he was - had been in New York for 5 years.

6. She wishes her friends didn't go - hadn't gone to bed so early.

7. My boyfriend didn't meet - hadn't met me when I arrived.