Question

Complete with MUST / MUSTN’T / HAVE TO / DON’T HAVE TO

a- If you go to th USA, you __________________ have a visa.
b- You _______________________ carry a credit card when youtravel abroad.
c- Students ____________________________ smoke at school.
d- You _____________________________ bring all your books inyour backpack.
e- You ____________________ have to go to a doctor when you have a contagious desease.

Answer 1

must
have to
mustn't
don't have to
must