考试
2020-03-16 07:03:22

4421 Only recently______to rea

题目描述

Only recently______to realize the dangers caffeine(咖啡因)might bring to our health.A.that



Only recently______to realize the dangers caffeine(咖啡因)might bring to our health.

A.that scientists began

B.have scientists begun

C.scientists have begun

D.that did scientists begin

请帮忙给出正确答案和分析,谢谢!

答案解析

B本题考查倒装结构,only放在句首要求

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