Some amazing people our world for the better in the past 100 years.A. changeB. are changi

发布时间：2020-08-17 01:58:00

Some amazing people      our world for the better in the past 100 years.
A. change
B. are changing
C. have changed
D. had changed

网友回答

A. change
B. are changing
(答案→)C. have changed
D. had changed
解析：表示过去的某一动作或行为一直持续到现在，用现在完成时，故选C。
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