They all agree that great changes __________ in Shanghai in the last few years.
题目
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.
答案
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
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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