Some people plan to a volunteer project to help the disabled children. A. put upB. think

问题补充：

Some people plan to a volunteer project to help the disabled children.

A. put up

B. think up

C. set up

D. cheer up

答案：

A. put up

B. think up

(答案→)C. set up

D. cheer up

解析：句意：一些人计划建立一个志愿者工程以帮助残疾儿童。A张贴B想起C建立D振作起来。故选C。