(2013·山东实验中学高三二模)—What's the matter with John? He has been sitting there for hours.
—A postcard from his father an attack of homesickness in him.
A. took up
B. set off
C. brought in
D. built up
网友回答
A. took up
(答案→)B. set off
C. brought in
D. built up
解析：选B 句意：“约翰怎么了？他一直在那儿坐了好几个小时了。”“父亲寄来的明信片使他想家。”take up“拿起；占据；从事”；set off“出发；引起；使爆炸”；bring in“带来；引进”；build up“逐渐建立”。