The number of primary schools in the rural areas______doubling in the past 50 ye

游客2024-01-14 68

问题 The number of primary schools in the rural areas______doubling in the past 50 years.

选项 A、are
B、is
C、have been
D、has been

答案 D

解析考查主谓一致和动词的时态。句意：农村地区的小学数量在过去50年间已经翻了一番。该句的主语是the number，而不是其后的primary schools，因此应使用单数，而时间状语in the past 50 years对应的时态是现在完成时，故选D。

转载请注明原文地址:https://www.tihaiku.com/zcyy/3362831.html

相关试题推荐

随机试题

最新回复(0)

______thenumberofcars,hethought,therewerenotmanypeopleattheclubyet