1) Snowstorms .... make driving dangerous in the winter. a) can b) should c) might d) must 2) You .... call your grandmother more often. a) can b) should c) might d) must 3) I .... feed my pet every day. a) can b) should c) might d) must 4) Students .... wear uniform at school.  a) can b) should c) might d) must 5) It's boiling hot outside. You .... drink more water to stay hydrated. a) can b) should c) might d) must 6) Students .... use their phones during the exam. a) can't b) shouldn't c) might not d) mustn't 7) The weather is nice. I .... go to the beach tomorrow, but I'm not sure. a) can b) should c) may d) must 8) A: Where is Ann? B: I don't know. She .... be in her room, the light is on. a) can b) should c) may d) must 9) You .... take a jacket. It’s getting chilly outside. a) can b) should c) might d) must 10) It .... rain tomorrow, but you should still take an umbrella. a) can't b) shouldn't c) mayn't d) mustn't 11) The wind .... get stronger this evening. a) can b) should c) may d) must 12) You .... forget to lock the door before leaving. a) can't b) shouldn't c) might not d) mustn't 13) It .... get foggy in the mornings during autumn. a) can b) should c) might d) must 14) You .... leave the house without a coat when it’s freezing outside. a) can't b) shouldn't c) might not d) mustn't 15) Hikers .... check the weather forecast before starting a long trail. a) can b) should c) might d) must 16) We .... stay indoors if the weather gets worse. a) can b) should c) might d) must

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