1) you......be careful a) must b) musn't c) do d) does 2) he .........forget his homework at home. a) do b) does c) mustn't d) musn't 3) we......... run at school a) must b) musn't c) can d) can't 4) he.......... put litter into the bin a) must b) musn't c) do d) can 5) she .........learn french a) must b) musn't c) do d) does 6) he.......... eat less a) must b) musn't c) do d) does 7) parents........ take care of their children a) must b) musn't c) can d) can't 8) she............forget her books a) must b) musn't c) do d) does 9) we ...........work harder a) must b) musn't c) can d) can't 10) you ............ shout in the library a) must b) musn't c) do d) can

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