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It was recommended that they ______for the doctor.A. has waited B. waited C. should

题目

It was recommended that they ______for the doctor.

A. has waited

B. waited

C. should wait

D. should have waited

参考答案
正确答案:C

【参考分析】在“It is+表示提议、要求、命令等含义的动词过去分词+that分句”这一结构中,从句谓语动词用“动词原形”或“should+动词原形”表示虚拟语气。