It is necessary that a person______exercises everyday if he wishes to be healthy.A.doB.doe

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It is necessary that a person______exercises everyday if he wishes to be healthy.

A.do

B.does

C.did

D.must do

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。