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