there have been many changes --- in my hometown in the last ten yeas
there have been many changes --- in my hometown in the last ten yeas
a\ happen
b\ happened
c\ happening
d\ to happen
为什么答案选c
说明理由
a\ happen
b\ happened
c\ happening
d\ to happen
为什么答案选c
说明理由
英语人气：873 ℃时间：2019-12-01 12:28:00
优质解答
这是there be ...doing 的固定句型,译为有.事正在发生.本句用的是现在完成时.这才是正解.欢迎追问,
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