Ответ:

Exercise 1:

1) Did John tired after work?

2)Does we live in a small house

3)Did summer started at last?

4)Does I'm playing the piano?

5)Is my friend walking with his dog now?

Exercise 3:

1)who reads books at the evening in home?

2)where do you live?

3)Can you speak English?

Exercise 4:

1) Who is study at the University?

2)at what did they write in English

3)when did Ann finished her work?