Passive voice                 

1.     My little sister drinks milk every day.

2.     They often thank me for my help.

3.     The Browns visited my parents yesterday.

4.     They gave me the letter afew minutes ago.

5.     Did you find my fountain pen yesterday?

6.     I have already seen this movie.

7.     Tom has already drunk three cups of coffee since I sat here.

8.     My parents will take me to the zoo tomorrow.

9.     Ms. Hoa taught English in this school two years ago.

10.                  My friend can answer this question.

11.                  The police found him in the forest.

12.                  The teacher explains the lesson.

13.                  I can’t do these exercises quickly.

14.                  The movie has disappointed us very much.

15.                  They have to pay the bill before the first of the month.

16.                  They will ask you several questions.

17.                  Somebody has locked the box and I can’t open it.

18.                  He shouldn’t do that silly thing.

19.                  They study Math four times a week.

20.                  I gave him back the money last Sunday.