put " must, mustn't, have to or ought to" to complete the sentence.
1.remember that the letter......................be sent to her this morning.
2.police: you.................bring your own driving license when you drive a car.
3.we didn't..................spend too much time taking the taxi
4."you......................interrupt when i am speaking".he said to the child
5.my husband will...................cook his own meals if i am away.
6.trainer: you............................spend 8 hours practicing ball a day.
7. you.......................not worry about this. i will help you
8.tell him that he....................be there by mine. they insist on it.
9. our staffs.........................wear uniform when they are at the ofice.