Ответ:

MUST:

ОТРИЦАТЕЛЬНЫЕ:

1.She mustn't go to school

2.He mustn't do his homework

ПОЛОЖИТЕЛЬНЫЕ:

1.They must be careful

2.He must know that

ВОПРОСИТЕЛЬНЫЕ:

1.Who must be first?

2.What must happen tomorrow

HAVE TO:

ОТРИЦАТЕЛЬНЫЕ:

1.You don't have to eat it.

2.We didn't have to open the letter.

ПОЛОЖИТЕЛЬНЫЕ:

1.I have to clean my room.

2.He has to act quickly.

ВОПРОСИТЕЛЬНЫЕ:

1.Does she have to write him?

2.Do you have to take my things?