[ Grammar & Vocab ]
Kids ______ forget a mask when coming to school.
A. can
B. must
C. mustn’t

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Grammar for TOEFL › ViewNever in the world I believed that this would happen.
A. Incorrect
B. Correct
Grammar › View
My two friends _________ tv in the living-room at the moment.
A. are watching
B. is watching
C. watch
D. watches