Only you have your boarding pass can you take a plane. （有登机牌才能够乘坐飞机。）
查看答案
You can arrive at the airport and take the plane at the time on the ticket.（你可以按照机票上的时间到达机场乘机。）
A. 对
B. 错
You can check in through the following ways:
A. Online check-in
B. Kiosk check-in
Counter check-in
D. Letter check-in
Arrange the steps to check in baggage.
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