6. Поставьте предложения в вопросительную
1) Do I have to be at home by 10 o'clock?
2) Will John be able to go to Washington next week?
3) Could she make dinner when she was 10? / 3) Was she able to make dinner when she was 10?
и отрицательную формы:
1) I do not have to be at home by 10 o'clock.
2) John will not be able to go to Washington next week.
3) She could not make dinner when she was 10.
