问题补充：
They raised a lot of money and a school for the children in the mountain area.
A. took up
B. built up
C. made up
D. set up
答案：
A. took up
B. built up
C. made up
(答案→)D. set up
解析：考查固定词组，A. took up拿起B. built up增进D. set up建造，句子意思“他们集资了许多钱为山区的孩子们建造学校”
