Passengers on board aren’t allowed calls during take-off.A. making or receivingB. having

发布时间:2020-08-17 01:29:37

Passengers on board aren’t allowed      calls during take-off.  
A. making or receiving
B. having made or received
C. to have made or received
D. to make or receive

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A. making or receiving
B. having made or received
C. to have made or received
(答案→)D. to make or receive
解析:allow sb to do sth这里是短语的被动形式,动词不定式的完成时表示它的动作在谓语动词之前发生,不符合句意,故选D。
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