问题补充:
There great changes in our hometown in the past fifteen years.
A. has been
B. have been
C. was
D. were
答案:
A. has been
(答案→)B. have been
C. was
D. were
解析:考查时态。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。
时间:2021-02-17 00:41:44
There great changes in our hometown in the past fifteen years.
A. has been
B. have been
C. was
D. were
A. has been
(答案→)B. have been
C. was
D. were
解析:考查时态。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。
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