The flight to Guangzhou had to be because of the heavy snow.A. put upB. put offC. put away

问题补充：

The flight to Guangzhou had to be because of the heavy snow.

A. put up

B. put off

C. put away

D. put down

答案：

A. put up

(答案→)B. put off

C. put away

D. put down

解析：本题的含义是由于大雪的原因，到广州的航班必须推迟，put off表示推迟的意思，故本题选B。