1. отрицательная форма: they didn't read many books

положительная форма: they read many books

вопросительная форма: did they read a lot of books?

2. отрицательная форма: the children don't eat soup now

положительная форма: the children eat soup now

вопросительная форма: are children eat soup now?

3. отрицательная форма: he doesn't help his mother every day

положительная форма: he help his mother every day

вопросительная форма: does he hepp his mother every day?

4. отрицательная форма: you don't play the pianino well

положительная форма: you play the pianino well

вопросительная форма: do you play the pianino well?

5. отрицательная форма: look! Kate is not dancing now

положительная форма: look! Kate dancing now

вопросительная форма: look! is Kate dancing now?

надеюсь помогла)