F

5. are not working

6. isn't writting

7. Is the cat running

8. Are you doing

G

1. have

2. has

3. plays

4. brushes

5. go

6. goes

Exercício H

N: We don't have breakfast at 3 a.m.

I: Do we have breakfast at 3 a.m.?

N: He doesn't have lunch at 12:30 p.m.

I: Does he have lunch at 12:20 p.m.?

Exercício I

1. Do you exercise every day?

Resposta: No, I don't.

2. Do you like reading?

Resposta: Yes, I do.

3. Do you know how to swim?

Resposta: Yes, indeed.

4. Does your mother cook well?

Resposta: Yes, she does.

5. Does your brother speak English?

Resposta: A little bit.