Modal verbs — Giving adviceOnline version Choose the correct version using should, could, must, have to by Julia Kulcsar 1 You ......... wear protective glasses in the laboratory. a could b mustn't c must d have 2 You ..................... wear a tuxedo. A suit is enough. a mustn't b should c don't have to d could 3 If you have sleeping problems, you ........... try eating less for supper. a could b have to c would d couldn't 4 I can see you're busy. .......... I come back later? a mustn't b have to c would d should 5 We ............ come in at 8 on Friday. The boss said so. a could b should c have to d couldn't 6 You .............. bring your dog in the office. It is not allowed. a shouldn't b don't have to c mustn't d couldn't 7 You ...... be nicer to Sara. She is not a bad person. a must b shouldn't c should d have to 8 Do I really ....... wear a tie? a have to b must c should d could 9 You .......... spend too much time worrying. Everything will work out in the end. a must b have to c wouldn't d shouldn't 10 Is that the time? I ..... go and pick up my daughter. a could b must c mustn't d don't have to
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