Passengers on board aren't allowed calls during take-off．A. making or receivingB. to make

发布时间：2020-08-16 10:02:58


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

网友回答

A. making or receiving
(答案→)B. to make or receive
C. to have made or received
D. having made or received
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