52单词网 > 高中英语 > 高中英语题库 > ---- Flight 551 for Dallas . I must be off now. ------Have a pleasant trip then.

---- Flight 551 for Dallas . I must be off now. ------Have a pleasant trip then.

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---- Flight 551 for Dallas . I must be off now. ------Have a pleasant trip then.

---- Flight 551 for Dallas ________. I must be off now.

------Have a pleasant trip then.

A．is being announcedB．has announcedC．was announcingD．had been announced

试题答案

A

解析

标签：nowoffhavetrippleasant

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