选B
但是这里的changed不是过去式,而是一个过去分词.做宾语补足语.
表示宾语the city与变化之间的被动关系.
再如:
I found a baby crying there 主动关系用现在分词
I found a baby tied to a bed 被动用过去分词
9.They were greatly amazed to find the city______ a lot in the past ten years.
9.They were greatly amazed to find the city______ a lot in the past ten years.
A. change
B. changed
C. to have changed
D. changing
不明白为什么选B ,C不行吗?
A. change
B. changed
C. to have changed
D. changing
不明白为什么选B ,C不行吗?
英语人气：495 ℃时间：2019-09-22 07:14:37
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