Question

【题目】There ___________ great changes in our hometown over the twenty years.

A. have taken placeB. have hadC. have beenD. were

Answer 1

【答案】C

【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。