There great changes in our hometown over the twenty years.A. have taken place B. have had

发布时间：2020-08-20 18:43:22

There      great changes in our hometown over the twenty years.
A. have taken place
B. have had
C. have been
D. were

网友回答

A. have taken place
B. have had
(答案→)C. have been
D. were
解析：由“there”可知，此句应用“there be”句型,排除AB。由时间状语over可知此句时态为现在完成时，故选C。
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