Вставьте необходимые модальные глаголы (must, may, can, have to, should, need, would, ought to или их эквиваленты)
1.... I introduce Mr. Smith?
2. It... be very cold here in May.
3... I use your telephone?
4. He... answer these questions without any help.
5. A mam... help his parents when they become old.
6. I... have done it if I had more time.
7. You... say nothing. Just nod your head and he will understand.
8. You.. sit here in your wet clother; you, ll catch cold if you do.
9. We... drive fast; we have plenty of time.
10. Yesterday I...stay at home as was ill.