It’s high time we ______ something to stop air pollution.A、are doingB、didC、hav

游客2024-07-04 29

问题 It’s high time we ______ something to stop air pollution.

选项 A、are doing
B、did
C、have to do
D、must do

答案 B

解析本题考点为虚拟语气。句型It is(high，about)time that... 要求用虚拟语气，表示应该做而还没做的事，谓语动词一般用过去式。例如：It’s high time that he stopped smoking。

转载请注明原文地址:http://tihaiku.com/zcyy/3662797.html

相关试题推荐

随机试题

最新回复(0)

It’shightimewe______somethingtostopairpollution.A、aredoingB、didC、hav