Itwasrecommendedthatthey（）forthe
单项选择题 It was recommended that they（）for the doctor.
A.has waited
B.waited
C.should wait
D.should have waited
正确答案：C
答案解析: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。
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相关知识：第二章、语法与词汇
