Two tablets __________ twice a day to have you recover from the illness quickly. * A.must take B.must be taken C.must have taken D.must be taking

2 câu trả lời

Two tablets __________ twice a day to have you recover from the illness quickly. *

A.must take

B.must be taken

C.must have taken

D.must be taking

( bị động)

Đáp án : B must be taken 

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