–Attention please. The flight has to be because of the heavy rain.A. put onB. put offC. p

问题补充：

–Attention, please. The flight has to be because of the heavy rain.

A. put on

B. put off

C. put away

D. put up

答案：

A. put on

(答案→)B. put off

C. put away

D. put up

解析：本题的含义是由于大雨航班必须被推迟起航，put off表示推迟的意思，符合题意，故本题选B。