Passengers on board aren’t allowed _____
题型:选择题
问题:
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
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