1) You _____ cross the road when the traffic lights are red. a) don't have to b) must not c) both are possible 2) What ____ do when I finish this exercise? a) do I have to b) must c) both are possible 3) The concert is free. You _____ pay. a) don't have to b) can't c) both are possible 4) We're late for the meeting. We ______ go now. a) have to b) must c) both are possible 5) You _____ leave the door open--the dog will get out. a) don't have to b) must not c) both are possible 6) I _____ pay Jane back the money she lent me. a) have to b) must c) both are possible 7) In the US, you ________ drive on the right. a) have to b) must c) both are possible 8) You _____ be tall to be good at soccer. a) don't have to b) can't c) both are possible

Modals: must, have to, must not, can't, don't have to) Complete the sentences

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