问题 选择题

Nobody but doctors or nurses and those ________ by Dr Li ________ to enter the patient’s room.

A.being invited;allowed

B.are invited;are allowed

C.invited;is allowed

D.invited;are allowed

答案

答案:C

考查非谓语动词和主谓一致。第一空为过去分词短语作定语;第二空主语的中心词是nobody,所以选C项。

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