Question

【题目】There ______ great changes in our hometown in the past fifteen years.

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

Answer 1

【答案】B

【解析】

试题分析：句意：在过去15年里我们的家乡发生了巨大变化。in the past +时间段，后用现在完成时态，根据题中的in the past fifteen years是现在完成的标志词之一，所以选B。