________madeussurprisedthatthestud

发布时间：2020-07-11 03:10:48

________ made us surprised that the students even didn't know ________ the difference between the two words lies.













A.What; where












B.It; where











C.That; where











D.It; what

网友回答

B解析第一空用it作形式主语，真正主语是随后的that从句，此空不能用what；第二空用where引导宾语从句，引导词在从句中作状语。
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