6) 3.are are you doing your homework? - no, i am not

4. where is your brother going? - he is going to school

5. are they making lunch? - yes, they are

6. is Helen listening to music? - no, she isn't

7) 2. what are you doing at the moment?

3. they are using the computer at the moment

4. do you like swimming?

5. listen! the teacher is talking

6. how often does he go on holiday?

8) 3. I was in the garden with my friends

4. we wasn't hungry

5. was he in the town centre?

6. where were your parents?

7. you weren't late for school