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Must / Mustn't
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You ....................... raise hand to speak in the class. (must/ mustn't)
must
Oops!
Okay!
You ................... wash your hands regularly. (must / mustn't)
must
Oops!
Okay!
You .................... sing and dance in the library. (must / mustn't)
mustn't
Oops!
Okay!
You ...................... late for school. (must / mustn't)
mustn't
Oops!
Okay!
You ....................... brush your teeth twice a day. (must / mustn't)
must
Oops!
Okay!
You .................... keep off the grass.
must
Oops!
Okay!
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