题目内容
---Could I have a window seat ?
---All right. Your flight _____ boarding at Gate 18 at 2:15.
A. have begun B. began C. is to begin D. begins
D
解析:
略
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题目内容
---Could I have a window seat ?
---All right. Your flight _____ boarding at Gate 18 at 2:15.
A. have begun B. began C. is to begin D. begins
D
略