1. When she came, I (listen) a speech by the Presidents on the radio

2. She (go) to the cinema on Sundays

3. While they (dance) in the hall, the light (go) out

4. My sister (take) an exam tomorrow

5. By the end of next my wife (do) her spring cleaning and we'll all be al le to relax again

6. They (get) five certificates by the time they ( graduate)

7. Her son (save) a lot of money up to now

`1)`  was listen

`=>` Thì quá khư đơn

`=>` S + was/were + noun/adj

`2)` goes 

`=>` thì hiện tại đơn

`=>` Dấu hiệu: on sunday

`3)`  were dance ............... went 

`=>` thì quá khư dơn

`=>` S + was/were + noun/adj

`4)`  will take 

`=>` thì tương lai đơn

`=>` Dấu hiệu : tomorrow

`=>` CT: S + will +  V(nguyên thể)

`5)`  will have done 

`=>` Thì tương lai hoàn thành

`=>`  S + will + have + VpII

`6)`  had got .............. graduated

`7)` is saving

`=>` thì hiện tại tiếp diễn

`=>` Dấu hiệu: now

`=>` S + tobe + Ving