Question

Вставь: can / can't / will / won't / must / mustn't / should.
1 A: I have a toothache.
B: You ........ visit the dentist.
2 Dolphins ........ swim but they ....... fly.
3 A: ......... you go away for the weekend?
B No, I ........ .

Answer 1

1 should
2 can-can't
3 will-won't

Answer 2

B:should(cледует)
2:Dolphins can swim but the can't fly.
3:will
B:won'y