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”. 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).

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