__ was once regarded as impossible has come true.A.WhoB.WhichC.ThatD.What-英语

题目简介

__ was once regarded as impossible has come true.A.WhoB.WhichC.ThatD.What-英语

题目详情

__ was once regarded as impossible has come true.
A.WhoB.WhichC.ThatD.What
题型:单选题难度:偏易来源:不详

答案

D
that是连词,只起连接从句作用,不做句子成分;what是关系代词,相当于something that或anything that,that中不含 what ,但what中有that。

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