Question

Change the passive voise:
1) Usually they do many exercises at class
2) They have signed the contract
3) She noticed his new suit
4) I will look through the mail

Answer 1

Answer:

1) Usually many exercises is done by them at class.

2) The contract has been signed by them.

3) His new suit was noticed by her.

4) The mail will be looked through by me.

Answer 2

Answer:

1) Usually many exercises are done by them at class.

2) the contract had been signed by them.

3) His new suit was noticed by her.

4) the mail will be looked by me.

Explanation:

I think these are correct and helpful to you!!