--Attention,please.Theplanehastobe

問題詳情：

 -- Attention, please. The plane has to be ______ because of the heavy rain.

   -- Oh, bad luck! We have to wait now.

   A. put on         B. put off           C. put up            D. put away

【回答】

B

知識點：動詞和動詞短語

題型：選擇題