1) I ___ buy a new fridge last week. a) had to b) must c) Both forms are correct. 2) You ___ buy a ticket in advance – you can do it on the train. a) don't have to b) mustn't c) Both forms are correct. 3) He ___ eat any more cake. He's already had three pieces. a) shouldn't b) doesn't have to c) Both forms are correct. 4) I ___ try to eat more vegetables. a) should b) ought to c) Both forms are correct. 5) You ___ spill anything on the sofa – it's leather. a) mustn't b) don't have to c) Both forms are correct. 6) You ___ arrive late on your first day at work. a) shouldn't b) don't have to c) Both forms are correct. 7) The speed limit on this road is 30 kph, so you ___ drive faster than that. a) don't have to b) mustn't c) Both forms are correct. 8) My neighbour ___ take her son to the doctor's last night. a) had to b) must c) Both forms are correct. 9) You ___ try the seafood while you're in Sicily – it's delicious. a) have to b) must c) Both forms are correct. 10) You ___ speak badly about other people. It isn't very nice. a) don't have to b) shouldn't c) Both forms are correct. 11) He ___ wear a uniform when he's at work. a) has to b) must c) Both forms are correct. 12) We ___ hurry. We have plenty of time. a) don't have to b) mustn't c) Both forms are correct. 13) Do you think we ___ text Jim to tell him we'll be late? a) should b) ought to c) Both forms are correct. 14) When I was at school we ___ wear a horrible uniform. a) had to b) must c) Both forms are correct. 15) You ___ walk on the grass. We've just planted flowers there. a) mustn't b) don't have to c) Both forms are correct.

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