3.All flights _______ because of the snowstorm,many passengers co_英语解答

3.All flights _______ because of the snowstorm,many
passengers could do nothing but take the train.
A) had been canceled B) have been canceled
C) were canceled D) having been canceled
为什么选择B?独立主格结构不是选D吗?

人气：313 ℃　时间：2019-09-09 17:57:43

解答

我也觉得是选D,
其他都不符合,
这根本是两个句子.
前一个要用独立结构.
如果改为两个句子,
应该选B