题目内容
---- Flight 551 for Dallas ________. I must be off now.
------Have a pleasant trip then.
A.is being announced B. has announced C. was announcing D. had been announced
【答案】
A
【解析】略
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题目内容
---- Flight 551 for Dallas ________. I must be off now.
------Have a pleasant trip then.
A.is being announced B. has announced C. was announcing D. had been announced
A
【解析】略