Complete the sentences with mustn't or don't/ doesn't have to.
1 He's a brilliant student - he
work hard to
get good marks.
2 You can stay up late, but you
make a lot
of noise and wake up your sister.
3 We
forget the name of our hotel.
4 She always pays by credit card so that she
carry a lot of money with her.
5 You
_ tell Jack about the party - it's a
secret!
6 The bus leaves at 9 a.m. exactly, so you
be late.
7 We
wear a uniform to school, but we
wear jeans or trainers.
