The flight to Chicago ______ because of the heavy fog ,we had to take the train. A)had been canceleThe flight to Chicago ______ because of the heavy fog ,we had to take the train.A)had been canceledB)was canceledC)having canceledD)having been cancele

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The flight to Chicago ______ because of the heavy fog ,we had to take the train. A)had been canceleThe flight to Chicago ______ because of the heavy fog ,we had to take the train.A)had been canceledB)was canceledC)having canceledD)having been cancele

The flight to Chicago ______ because of the heavy fog ,we had to take the train. A)had been canceleThe flight to Chicago ______ because of the heavy fog ,we had to take the train.A)had been canceledB)was canceledC)having canceledD)having been cancele
The flight to Chicago ______ because of the heavy fog ,we had to take the train. A)had been cancele
The flight to Chicago ______ because of the heavy fog ,we had to take the train.
A)had been canceled
B)was canceled
C)having canceled
D)having been canceled

The flight to Chicago ______ because of the heavy fog ,we had to take the train. A)had been canceleThe flight to Chicago ______ because of the heavy fog ,we had to take the train.A)had been canceledB)was canceledC)having canceledD)having been cancele
选D.去芝加哥的航班由于大雾天气被取消了,所以我们不得不坐火车(去).
主句we had to take the train,The flight to Chicago ______ because of the heavy fog 做从句,所以A.B错误(若选A或B则变成两个并列句,不符合句意).航班被取消,是被动句所以选D.

D 原因状语

D吧

A

A 我作业上的一句话后半部分和你题目和这个时态一样的。