Grammar 1 1 choose the correct answers. 2 we mustn’t / don’t have to give in this assignment until next friday. that’s good news! 3 we must / have to meet up sometime for a coffee and a chat. 4 simon needn’t / shouldn’t work so hard. he’ll make himself ill. 5 do you think we have to / ought to check with your dad before using his tools? 6 i really don’t have to / mustn’t eat so much salt. it’s very bad for me. 7 you oughtn’t to / needn’t worry about me. i’m getting a lift home with freddie. 8 you mustn’t / shouldn’t park there! it’s the boss’s space and he’ll be furious. 9 i need to get / get some money out of the bank later today. 2 complete the sentences with must, can’t or might and the correct form of the verbs in brackets. 1 he (be) a vegetarian. i’ve never seen him eat meat. 2 dan (be) back before lunchtime but i wouldn’t bet on it! 3 she (be) exhausted! she’s just slept for more than twelve hours. 4 you (see) this film before. it was only released yesterday. 5 i (leave) the keys on the table. can you check for me? 6 helen (like) your cooking. look, she’s left most of the meal. 7 you (joke)! i can’t come out now – i’m in bed!
3 must
4 shouldn't
5 ought to
6 mustn't
8 mustn't
9 to get
1 must be
2might be
3 can't be
4 can't have seen5 might have left
6 can't like
7 must be joking