-----Why was our foreign teacher unhappy yesterday?
-----News about the hurricane(飓风) striking her country an attack of homesickness.
A. set aside
B. set out
C. set off
D. set about
网友回答
A. set aside
B. set out
(答案→)C. set off
D. set about
解析：动词短语辨析。A收拾，整理；放在一边；B出发，动身；C引起，使方式，引爆；D开始；着手；句意：—今天为什么外教不开心。—关于飓风袭击他的家乡的消息引起了他对家乡的思念。故C正确。