Question

Exercise A: Re-write the sentences in the passive voice:
1) The army will guard the fortress.
2) My sister studies Geography.
3) Some people were shouting at the bus driver.
4) A friend of mine will accompany me.
5) The peon had locked the office door when we went there.
6) We all love our country.
7) All the boys wore blue shirts.
8) She will have become a nurse by the end of this year,
9) You have passed the test.
10) He will visit you in the afternoon.
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Answer 1

1) The fortress will be guarded by the army.

4) I will be accompanied by a friend of mine.

7) Blue shirts were worn by all the boys.

8) By the end of this year she will become  a nurse.

9) The test was passed by you.

10) In the afternoon he will visit you.

I am not sure whether I have written the correct answers............but hope it helps!!:)