[ Modal Verbs ]
You ______________ leave small objects lying around. These objects ______________ be swallowed by children.
A. can’t, must
B. musn’t, can

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Phrasal Verb › ViewLots of fruit and vegetables will help you _________ your cold.
A. get over
B. find out
C. turn back
D. cheer up
Past Tense and Perfect Tense › View
The kids are _____ basketball.
A. playing
B. played
C. plays
D. was play