---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 |
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---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 |