Question

—Do you know when we can go back home?

   —Sorry, I don’t. Because of the heavy snow storm, highways have been blocked and flights have been __________.

A. put up            B. put off            C. taken off           D. taken up

Answer

B

【解析】

 试题分析：句意：——你知道我们什么时候回家？——对不起，我不知道。因为暴风雪，高速公路已经被堵塞，航班已被推迟。A. put up 举起；B. put off 推迟，延误；C. taken off  脱下，起飞；D. taken up占据。根据Because of the heavy snow storm,可知因为暴风雪航班被延误，推迟。故选B。

 考点：考查动词短语的用法。