We have to admit that never in the past twenty years ________ so greatly as before.
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A. did the city change B. the city has changed C. has the city changed D. the city had changed
参考答案:
They had just taken their seats, then _____. [ ]A. the cha..
They had just taken their seats, then _____. [ ]A. the chairman came B. the chairman comes C. came the chairmanD. comes the chairman