There _______ great changes in our homet...

There _______ great changes in our hometown in the past fifteen years.

A. has been B. have been C. was D. were

B 【解析】试题分析：句意：在过去的十五年里我们的家乡发生了巨大的变化。根据 in the past fifteen years可知，本句应该使用现在完成时：have/has +过去分词；由于真正的主语是great changes，故用have，所以本题选B。考点：考查动词时态。

考点分析：

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