问题
The pilot asked all the passengers on board to remain _____ as the plane was landing [ ]
A: seat
B: seating
C: seated
D: to be seating
B: seating
C: seated
D: to be seating
正确答案是：
同类题型
___,they’ll carry on the work until they can getthe money they need
ys everything strange is____strangeThat is to say, any unexpected ____thing is possible to happen
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Your daughter has two children, doesn’t she?—That’s right; she for ten years.