The scientists recommend that studies ________ to find out what side effects the medicine might cause.

The scientists recommend that studies ________ to find out what side effects the medicine might cause.

A.be done B.should do C.will be done D.are done

大掌柜99 1年前 已收到1个回答 举报

jackccl2011 精英

共回答了372个问题采纳率:86.3% 举报

A 

[recommend后接宾语从句时,谓语动词用虚拟语气,should可以省略。此题中因为studies是动作的承受者,所以用被动形式。]

1年前

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