摘要： Every effort must be to prevent the ill effect the poisonous milk has the the babies. A. done ; on B. done ; in C. made ; on D. made ; in

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Every effort must be to prevent the ill effect the poisonous milk has the the babies．

Every effort must be ________ to prevent the ill effect the poisonous milk has ________ the the babies．

A．done; on

B．done; in

C．made; on

D．made; in

Every effort must be ________ to prevent the ill effect the poisonous milk has ________ the the babies．