1) You must _____ quiet in the library. a) was b) be c) to be d) being 2) You mustn't _______ in the books from the library. a) read b) write c) reading d) writing 3) You mustn't _______ in the swimming pool. a) to run b) running c) run 4) You must ________ to other students.   a) being kind b) be a kind c) be kind d) to be kind 5) You must _______ or drink in the library.  a) eat not b) not eating c) not eat d) eat 6) She ______ be quiet.  a) must b) musts 7) We mustn't ______ our phones in class. a) ring b) make c) call d) use 8) We mustn't ____ late for school. a) go b) be c) take d) do 9) We _______ our homework. a) mustn't do  b) must does c) must do d) must doing

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