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  3. All flights______because of the strike, they had to find some other means of transportation.

All flights______because of the strike, they had to find some other means of transportation.

admin2019-10-29  15
问题 All flights______because of the strike, they had to find some other means of transportation.
选项 A、having been canceled
B、had been canceled
C、having canceled
D、were canceled
答案A
解析 本题考查的是独立主格结构。本题中，独立主格结构做状语，由于是独立主格结构，因此选非谓语动词形式，先排除B、D两项。all flights是动作cancel的逻辑主语，两者之间的关系是动宾关系，即被动关系，因此要用被动语态，C项为主动语态。本句意为：因为罢工，所有的航班都被取消了，他们不得不寻找其它的交通出行方式。
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