1 Chọn câu bị động

2 the letter was sent two days ago

4 tim was taken to the zoo yesterday

5 the plants are watered every day

7 the children are told not to play there

9 this problem is discussed by the students

10 a new shop will be opened in three days

12 nick was asked to help tom

14 the house was decorated with flowers

2.Câu bị động hết tùy từng thời gian mà có các cấu trúc câu bị động khác nhau

1 was helped

2 is bought

3 was sent

4 will be given

5 was published

6 was delivered

7 was bought

8 will be invited

9 are written

10 was built

11 was met

12 was taken

13 is given

14 was seen

3.Câu bị động hết tùy từng thời gian mà có các cấu trúc câu bị động khác nhau

1 was

2 will be

3 was

4 is

5 was

6 will be

7  was

8 is

9 will be

10 was

11 is

12 was

13 will be

14 was

4.Câu bị động hết tùy từng thời gian mà có các cấu trúc câu bị động khác nhau

1 was found

2 will be taken

3 are attended

4 will be reconstructed

5 was designed

6 is used

7 was fed

8 will be repaired

9 was bought

10 will be cleaned

11 was sent

12 are cut

13 was written

14   will be bought

5.1 were->was(the address)

2 are-> is(the dress)

3 were->was(the dog)

4 been->be(the letter)

5 is->are(the lectures)

6 are->is(the heicopter)

7 will->will be(the flowers)

8 was->were(the keys)

9 is->are(the tests)

10 were->was(the car)

11 will->will be(the mobile)

12 were->was(the tower)

13 are->is(my cousin)

14 are->were(the pictures)

6.1 this car was bought yesterday

2 "romeo and juliet" was written by w.shakespare

3 the report will be made next week

4 mobiles are used every day 

5 the airplane is pilotted by my brother

6 the cat is fed by my mother every day

7 the novel will be published in a month