Underline the correct answer in brackets

Underline the correct answer in brackets.
1. Yesterday I
2. He will
3. She
4. We
freezer.
(must/mustn't/ had to) finish my English exercises.
(must/ have to/ has to) wait in line like everyone else.
(must be/ mustn't/ has to) tired.
(have to not/ must/ mustn't) forget to take the chicken out of the
5. If you are under 15, you
permission.
6. Your son may
7. The doctor
8. Do you
9. Bicyclists
10. Susan, you
like this.
(have/ must/ mustn't) to get your parents's
(have to/ had to/must) try on a few different sizes.
(must/ mustn't/ have to) get here as soon as he can.
(have to/ must/ mustn't) work next weekend?
(mustn't/ must/ has to) remember to signal when they turn.
(mustn't/must/have to) leave your clothes all over the floor