1,  drink/ drank

2.on my way, i often meet many children who go to school.

3the sun rises in the east and set in the  West.

4. when did they finished their work?-they finished it two hours ago.

5. what did she still do when her mother go to bed last night?

6. what are you doing now?

-we are repairing our house. we are hoping everything are nice.

7 buys/ was/ bought

8. he began to learn foreign languages when he was quite young.

9. people knowed that columbus discovered america nealy 500 years ago

.10 they shall all believe that he will just come back from london next week

11 did he leaves/ left

12 have started/ had

13played/arrived

14did you do/ came

15 was sleeping/ came

16came/opened/turned/began

1. DRINK/DRANK

2.MEET/GO

3.RISES/SETS

4.DID THEY FINISH/FINISHED

5.HAS SHE STILL DONE/WENT

6.ARE YOU DOING/REPAIRING/ARE HOPING

7.BUYS/WAS/BOUGHT

8.HAS BEGUN/WAS 

9.KNOWS/IS DISCOVERED

10.BELIEVE/CAME

11.LEFT/LEFT

12.HAVE STARTED/ WERE

13.HAS PLAYED/ARRIVED

14.WAS YOU DOING/CAME/WAS WEITING

15.WAS SLEEPING/CAME

16.CAME/OPENED/TURNED/BEGAN.

Có vài câu mình không chắc đâu cậu nhe.