问题补充:
Some organizations have been to help the poor students in the western areas of China.
A. given up
B. set up
C. picked up
D. put up
答案:
A. given up
(答案→)B. set up
C. picked up
D. put up
解析:given up放弃,交出;set up 建立,开业;picked up捡起,学会; put up提供,建造。句意:为了帮助中国西部地区的贫困学生,已经建立起了一些组织。结合语境可知选B。