问题
选择题
——Why was our foreign teacher unhappy yesterday?
——News about the tsunami striking her country ____ an attack of homesickness.
A．set for
B．set out
C．set about
D．set off
答案
答案：D
set off引起，激起。A letter from his home set off an attack of homesickness…。set out出发，开始；set about开始着手。