In this technological eraonce took a century now only takes a month.A.whichB.thatC.whenD.What-高三英语

题目简介

In this technological eraonce took a century now only takes a month.A.whichB.thatC.whenD.What-高三英语

题目详情

In this technological era       once took a century now only takes a month.
A.whichB.thatC.whenD.What
题型:单选题难度:中档来源:不详

答案

D
考查名词性从句。what once took a century now 做takes的主语,是主语从句。从句中缺少took的主语,故选what。

更多内容推荐