题目内容
.Nobody but doctors or nurses and those ________ by Dr. Hu
________ to enter the patient's room.
A.invited;is allowed B.are invited;are allowed
C.being invited;allowed D.invited;are allowed
A
【解析】答案 A [nobody在句子中作主语,谓语动词用单数,invited为动词的过去分词作后置定语。]
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