ta có cấu trúc câu bị động như sau :

S + be + V3 + by + O

6 Their form teacher wasn't greeted by the eighth form pupils

7 His parents will be sent a package

8 Two new dress have bought recently

9 You must write these music lessons in ink.

10 Our friends were outside the church

Bài 2

1 Potatoes can be grown in this farm.

2 They were ushered showed by An to their seats near the stage

3 Mr Baker is elected the president.

4 Was "King Lear" written by Shakespeare?

5 The big machine is called in the yard a combine harvester. 

6 The result of the examination shall be announced on Monday afternoon

7 Why weren't the lights turned on?

9 That exciting film has been seen many times.

10 His farm is being ploughed by the farmer.

6.The eighth form pupils greeted their form teacher 

=>Their form teacher wasn't greeted by the eighth form pupils
7.He will send his parents a package

=>His parents will be sent a package
8.She has bought two new dress recently.

=>Two new dress have bought recently
9.You must write these music lessons in ink.

=> these music lessons mut be written in ink.
10. We saw our friends outside the church.

=>Our friends were outside the church.

Ex:

1.People can grow potatoes in this farm.

=>Potatoes can be grown in this farm.

2.An usher showed them to their seats near the stage

=>They were ushered showed by An to their seats near the stage

3.People elect Mr Baker the president.

=>Mr Baker is elected the president.

4.Did Shakespeare write "King Lear"?

=>Was "King Lear" written by Shakespeare?

5.They call the big machine in the yard a combine harvester. 

=>The big machine is called in the yard a combine harvester. 

6. We shall announce the result of the examination on Monday afternoon

=>The result of the examination shall be announced on Monday afternoon

7. Why didn't they turn on the lights?

=>Why weren't the lights turned on?

9.1 have seen that exciting film many times.

=>That exciting film has been seen many times.

10.The farmer is ploughing his farm.

=> His farm is being ploughed by the farmer.