1) You ........... wear a mask because there is a deadly virus. a) should  b) can c) can't d) must 2) You .........eat healthy food. a) shouldn't b) can c) should d) mustn't 3) You...........eat many sweets. a) shouldn't b) can c) should d) must 4) ......... you lend me a laptop? a) should b) could c) can't d) shouldn't 5) You ........ help mom. a) mustn't b) should c) must d) can't 6) I ......... go outside, because it's raining and I don't have an umbrella. a) mustn't b) should c) must d) can't 7) You ....... eat vegetables. a) should b) can c) must d) can't 8) You ...... drop litter in the street. a) must b) can't c) mustn't d) should 9) ........ you call your mom, please? She's worried. a) can't b) could c) should d) will 10) We ....... go to the concert next month. I promise! a) should b) can c) will d) must 11) I...........do it. a) should b) can c) will d) must 12) We..........protect animals. a) shouldn't b) can't c) musn't d) must 13) We..........water plants. a) shouldn't b) can't c) musn't d) must 14) We..........cut down trees. a) shouldn't b) can't c) musn't d) must 15) You ........ get enough sleep. a) shouldn't b) should c) musn't d) must

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