Срочно помогите!!!!пожалуйста

1 English is spoken in Australia.

2 Much money is spent on holiday by her.

3 The window was broken by your little son.

4 The windows have been washed by them.

5 More chocolate will be bought by my friends.

6 Letters are usually sent to us by them.

We are usually sent letters by them.

7 The new University will be opened by the Prime minister.