sự phối thì 1. Last night, we (watch) television when the power (fail). 2. We (be) in this class for 4 years next September. 3. When we came in, they (prepare) the meal for us. 4. There (be) many changes in our village in the past few year. 5. Think carefully. I'm sure you (remember) his name. 6. After ancient Greek athletes had won a race in the Olympics, they (receive) a simple crown of olive leaves. 7. They (build) that bridge when I (be) there last year, they (not finish) it yet. 8. As soon as my parents came, we [go] out for dinner. sosososososo

1.Last night, we (watch) were watching  television when the power (fail). failed

2. We (be) will be have in this class for 4 years next September.

3. When we came in, they were prearing (prepare) the meal for us.

4. There (be) have been many changes in our village in the past few year.

5. Think carefully. I'm sure you (remember)  will remember his name.

6. After ancient Greek athletes had won a race in the Olympics, they (receive) received a simple crown of olive leaves.

7. They (build) built that bridge when I (be) was there last year, they (not finish) haven't finished it yet.

8. As soon as my parents came, we [go] had gone out for dinner.

cấu trúc quá khứ đơn :

+)S + was/ were +…

+)S + was/ were + not

+)Was/ Were + S +…?

cấu trúc thì hiện tại hoàn thành :

+)S + have/ has + VpII

+)S + have/ has + not + VpII 

+)Have/ Has + S + VpII +… ?

câu bị động ở quá khứ :

+)S + was/were + P2

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