1. rang, was watching

2. were you driving, happened

3. were making, arrived

4. went out, were having, came

5. were you doing

6. began, was sitting

7. took, wasn't looking

8. saw, were trying

9. was walking, felt, didn't know

10. dropped, was doing, didn't break

Chúc e học tốt :')

Chị xin ctlhn 

EX3. Choose the correct answer

1. The doorbell (rang/ was ringing) while Tom (watched/ was watching) television.

2. How fast (did you drive/ were you driving) when the accident (happened/ was happening)?

3. Anna and Susan (made/ were making) dinner when Martin (arrived/ was arriving) home.

4. The light (went out/ was going out) while we (had/ were having) dinner. But it (came/ was coming) on again after ten minutes.

5. “What (did you do/ were you doing) this time yesterday?” “I (worked/ was working) on the computer”. (có this time -> QKTD)

6. It suddenly (began/ was beginning) to rain while Laura (sat/ was sitting) in the garden.

7. Sam (took/ was taking) a photograph of me while I (didn’t look/ wasn’t looking).

8. When I (saw/ was seeing) them, they (tried/ were trying) to find a new hose near their work.

9. I (walked/ was walking) along the street when I suddenly (felt/ was feeling) something hit me in the back. I (didn’t know/ wasn’t knowing) what it was.

10. Last night I (dropped/ was dropping) a plate when I (did/ was doing) the washing up. Fortunately it (didn’t break/ wasn’t breaking).

While + QKTD, QKĐ

When + QKĐ, QKTD

Cái này áp dụng hầu hết các câu, có 1 số TH ngoại lệ nha

#HNgoc