题目内容
—Flight MU257 ____ . I must be off now.?
—Have a nice trip.?
A. is being announced B. has announced? C. was announcing D. had been announced
A
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题目内容
—Flight MU257 ____ . I must be off now.?
—Have a nice trip.?
A. is being announced B. has announced? C. was announcing D. had been announced
A