The past 30 years__________ the great changes that have taken place in my hometown.A.sawB.was seenC.

题目简介

The past 30 years__________ the great changes that have taken place in my hometown.A.sawB.was seenC.

题目详情

The past 30 years__________ the great changes that have taken place in my hometown.
A.sawB.was seenC.have seenD.see
题型:单选题难度:中档来源:不详

答案

C

试题分析:表示过去的某一动作或行为一直持续到现在,故用现在完成时。
点评:现在完成时可以表示动作发生在过去,但一直持续到现在,并且有可能持续下去。

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