Подставить верную букву:1. I ... the washing by hands because our

Подставить верную букву:
1. I ... the washing by hands because our washing-machine is broken.
a) have to do b) must do c) have do d) must to do
2. I think you ... at once or Ill call the police.
a) have to go b) must go c) have go (1) must to go
3. He ... look after his brothers after their mother fell ill.
a) must to b) has to c) must have d) have
4. We ... get up very early tomorrow as were leaving at ve am.
a) will must b) must to c) will have to (1) will have
5. You really ... have a week off yourjob every half a year.
a) must to b) must c) had d) have to