1) Students _____ wear a uniform in this school. (It's obligatory) a) must b) can c) don't have to 2) _____I come in, Ms. Blake? (Is it allowed?) a) Must b) May c) should 3) The doctor said I _____ swim before I get better. (It's not permitted) a) don't have to b) need to c) can't 4) It _____ get very cold here in winter in this country. (It's possible) a) has to b) can c) must 5) Do you _____ work until late on Fridays? (Is it obligatory) a) must b) need c) have to 6) How old do you _____ be to drive a car? (Is it necessary?) a) could b) have to c) can 7) Dogs _____ stay in the pool area. (It's forbidden) a) mustn't b) don't have to c) have to 8) You _____ eat in your office if you want. (It's permitted) a) don't need to b) can c) must

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