The flight to Toronto was because of the heavy snow.A. put off B. put away C. put upD. pu

问题补充：

The flight to Toronto was because of the heavy snow.

A. put off

B. put away

C. put up

D. put down

答案：

(答案→)A. put off

B. put away

C. put up

D. put down

解析：本题的含义是到多伦多的航班由于大雪被推迟，put off表示推迟的意思，故本题选A。