đáp án:

. I ...........called...........(call) Mr Wilson at 9 last night, but he (not be)..............wasn't..............at home. He (study) .................was studying................... at the library

2. I ..................didn't hear.................... (not hear) the thunder during the storm last night because I .............was sleeping............... (sleep)

3. It was beautiful yesterday when we went for a walk in the park. The sun.............was shining....................(shine). The birds................were singing............(sing)

4. My brother and sister...............were talking............ (talk) about something when I ...................walked................ (walk) into the room.

5. Tom went to his friends ‘house, but the boys ......................weren't...............(not be) there. They (play)..................were playing.................soccer in thevacant lot down the street.

6. The little boy ..........fell.......... (fall) asleep while his mother...........was reading...........(read) him a story.

7. I really enjoyed my holiday last January. While it..........was snowing..........snow) in Iowa, the sun..........was shining.......... (shine) in Florida.

8. While Ted ...............was shoveling............. (shovel) snow from his driveway yesterday, his wife ..............brought.................(bring) him a cup of hot chocolate.

9. John .....................had............... (have) a car accident last week. He ......was driving...... (drive) down the street when suddenly a lorry ............hit............ (hit) his car from behind.

10. Ten years ago, the government ..........decided............. (decide) to begin a food programme. At that time, many people in the rural areas ............were starving.............. (starve) due to several years of drought.

11. They...........were waiting..............(wait) for me when I ..................arrived............... at the station (arrive)

12. She .............was swimming........ (swim) in the sea when I.............saw................her (see)

13. ............were ............they............playing...........(play) tennis when it .......started.......... raining (start)?

14. We ...........were driving................. (drive) home from the theatre when the police ...........stopped...................(stop) us.

15. The wind was blowing................... (blow) very hard when I ................went............go) out this morning.

Chúc bn hok tốt!!!!

1. I _____called___________ (call) Mr Wilson at 9 last night, but he (not be)________wasn't_________at home. He (study) ___was studying____________ at the library

2. I _______didn't hear__________ (not hear) the thunder during the storm last night because I _____was sleeping___________ (sleep)

3. It was beautiful yesterday when we went for a walk in the park. The sun_______was shining_______(shine). The birds__were singing__________(sing)

4. My brother and sister ______were talking__________ (talk) about something when I _______walked_________ (walk) into the room.

5. Tom went to his friends ‘house, but the boys _______weren't____________ (not be) there. They (play)______were playing_______soccer in thevacant lot down the street.

6. The little boy ______fell_________ (fall) asleep while his mother___________was reading________ (read) him a story.

7. I really enjoyed my holiday last January. While it______was snowing_________(snow) in Iowa, the sun ___was shining___________ (shine) in Florida.

8. While Ted ______was shoveling_________ (shovel) snow from his driveway yesterday, his wife ____brought_____________ (bring) him a cup of hot chocolate.

9. John ___________had______ (have) a car accident last week. He ____________was driving______ (drive) down the street when suddenly a lorry _________hit_________ (hit) his car from behind.

10. Ten years ago, the government _____decided__________ (decide) to begin a food programme. At that time, many people in the rural areas ______were starving_________ (starve) due to several years of drought.

11. They _______were waiting____________(wait) for me when I ______arrived___________ at the station (arrive)

12. She ______was swimming__________ (swim) in the sea when I _______saw____________ her (see)

13. _________were __________they______playing___________(play) tennis when it _______started__________ raining (start)?

14. We _______were driving___________ (drive) home from the theatre when the police ____stopped______________(stop) us.

15. The wind was blowing___________ (blow) very hard when I _______went_________(go) out this morning.