1. How much had she drunk (she / study) before the exam?

2. How many coffees had started (she / drink) before the interview?

3. By the time we got to the cinema the film had started (to start), so we missed the first five minutes.

4. I had bought (buy) a new camera before I went (go) to London.

5. I had just turned off  (turn off) the lights when the telephone rang (ring).

6. The neighbour told me that they had gone out (to go out) about half our ago.

7. I saw Casablanca for the first time last night. I had never seen ( never/ see) it before.

8. I spent a week in Miami recently. I had not been (not/ be) there before.

9. She told me she had bought (buy) a new car.

10. When he arrived, Eve wasn't there. She had left ( leave) about five minutes before.

11. When we arrived in Spain, they had lost (lose) our luggage. We only had to wait two days to get it back though, and they delivered it to the house.

12. When I got back ( get back), nobody had done the washing up. I was furious.

13. He was (be) late because he had had (have) an accident.

14. Had John met (John/meet) Lucy before they went on holiday together?

15. Had I paid (I / pay) the bill before we left?

Giải thích:

Cấu trúc:

S + have/ has + PII.

S + haven’t/ hasn’t + PII.

Have/Has + S + PII?

Before + S + V-lll/ed + O , S + had  + Vpp + O 

After + S + had + Vpp + O , S + V-lll/ed + O 

When + S + V-lll/ed + O , S + had + Vpp + O

Thì hiện tại hoàn thành dùng để diễn tả về một hành động đã hoàn thành cho tới thời điểm hiện tại mà không bàn về thời gian diễn ra nói. 

#howardamelia

@Amelia gửi ạ, chúc bn học tốt

$\text{1.}$had she studied 

$\text{2.}$had she drunk

$\text{3.}$had started

$\text{4.}$had bought/went

$\text{5.}$had just turned off - rang

$\text{6.}$had gone out

$\text{7.}$had never seen

$\text{8.}$had not been

$\text{9.}$had bought

$\text{10.}$had left

$\text{11.}$had lost

$\text{12.}$got back

$\text{13.}$was - had had

$\text{14.}$had John met

$\text{15.}$had I paid  

$\Rightarrow$ S + had + Vpp + O 

$\Rightarrow$ S + had + not + Vpp + O 

$\Rightarrow$ Had + S + Vpp + O ? 

$\Rightarrow$ When + QKD , QKHT 

$\Rightarrow$Before + QKD , QKHT 

$#Ran$