Answer the questions with short answers (Ответь на вопросы короткими ответами) .

In the negative answers use short forms haven't/hasn't (В отрицательных ответах используй короткие формы haven't/hasn't ).

1.Have you done the homework?

Yes, I have.

2.Has Kate lost her mobile phone?

Yes, she has.

3.Has he had dinner yet?

No, he hasn't.