Complete the sentences with mustn't or don't/ doesn't have to.1 He's a brilliant student - he work hard toget good marks.2 You can stay up late, but youmake a lotof 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.​