MUST NOT AND DON'T HAVE TO

TO HAVE TO and MUST mean the same thing in the positive.
However, in the negative, they have very different meanings.

1-The negative of MUST is MUST NOT - contraction MUSTN'T
You must not smoke in the classroom.

2-The negative of HAVE TO is DON'T HAVE TO
DON'T HAVE TO means you have a choice, you can do something if you want but, there is no obligation to do it.

Compare these sentences:
You don't have to get married but most people do.
You must not drive without a licence.


Chosse MUST NOT or DON'T HAVE TO for these sentences:
1-You______drive on the right in England.
2-I'm not working tomorrow so I_____get up early.
3-You______smile when someone takes your photo.
4-You______be married to two people at the same time.
5-You______forget to bring this book tomorrow.

Answers:must not/don't have ti/don't have to/must not/don't have to

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