1) You ____ listen to the teacher. a) must  b) should 2) You ____ go to school. a) must b) should 3) You ____ go to the doctor. a) must b) should 4) I ____ read books. a) must b) should 5) You ____ help your parents. a) must b) should 6) You ____ drink Coke. a) musn't b) shouldn't 7) You ____ eat a lot of fruit. a) must b) should. 8) You ____ sleep 8 hours every day. a) must b) should. 9) I ____ study very good. a) must b) should

must/ should

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