Помогите пожайлуста cрочно перевести правило
Shot answers in Present Perfect
Have you done your homework? - No,I haven,t.
Have they received our postcards?-Yes,they have.
Have they finished teir Maths test yet?-Not yet.
Has Helen eveu ridden a camel?- No,she hasnt .
Has he been to the Science Vuseum recently?-Yes,he has.
Has Martin bounght any souvenirs?-No, he hasn,t.
Has the dogfound the ball?- No it hasnt.