They all agree that great changes __________ in Shanghai in the last few years.A.have happenedB.happenedC.were happening并给出让人信服的理由.

分类: 作业答案 • 2022-03-12 09:02:05

问题描述：

They all agree that great changes __________ in Shanghai in the last few years.
A.have happened
B.happened
C.were happening
并给出让人信服的理由.

答

个人认为是C，因为这个变化是持续发生的

答

C
上海是一直在变的
用过去进行时可以表示从过去一直持续到现在