1)It's a
secret. You mustn’t tell it to anyone
2)You must respect
your parents.
3)She is
very rich. She doesn’t have to go to work.
4)This
party is free. You don’t have to buy any tickets.
5)This is the
last bus for Paris and we mustn’t miss it
6) You must
be on time for the exam
7) They
mustn’t eat too much cake
8)We're
going to the restaurant, so our mother doesn’t have to cook tonight
9)You
mustn’t forget to turn off the light before you leave
10) It's getting
late. I think I must go now
11)Boys and
Girls, you have to hand in your essays by Thursday
12)Tom
doesn’t have to take a bus because his dad drives him to school every morning.
13)You
mustn’t tell me lies. It's just awful
14)We don’t
have to tidy up our room because our sister did it yesterday
15)You
mustn’t smoke on board the plane