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Chia đọng từ trong ngoặc ở thì QKĐ hoặc QKTD.
1. The doorbell ( ring)..........while Tom (watch).....TV
2. How fast.....you (drive)........when the accident (happen).......
3. Ann and Susan ( make)........dinner when Martin (arrive) ......home
4.The light ( go).......out when we(have)........dinner, but it (come)........on again after about ten minutes
5. It suddenly ( begin).....to rain while Laura (sit).....in the garden
6. What .....you (do) ........this time yesterday
I (work)......on the computer
1. The doorbell ( ring)..........while Tom (watch).....TV
2. How fast.....you (drive)........when the accident (happen).......
3. Ann and Susan ( make)........dinner when Martin (arrive) ......home
4.The light ( go).......out when we(have)........dinner, but it (come)........on again after about ten minutes
5. It suddenly ( begin).....to rain while Laura (sit).....in the garden
6. What .....you (do) ........this time yesterday
I (work)......on the computer