63. Passengers should Flight BA125 to Berlin.A. check in forB. check onC. check outD. chec

发布时间：2020-08-16 06:58:25


63. Passengers should      Flight BA125 to Berlin.
A. check in for
B. check on
C. check out
D. check off

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(答案→)A. check in for
B. check on
C. check out
D. check off
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