After discussing the students some good ideas to work on the projects.A. put upB. set upC

问题补充：

After discussing, the students some good ideas to work on the projects.

A. put up

B. set up

C. caught up with

D. came up with

答案：

A. put up

B. set up

C. caught up with

(答案→)D. came up with

解析：

试题分析:此题重点考查固定短语的含义。A表示搭建，挂起；B表示建立；C表示赶上；D表示想起来。根据语境可知此句的含义是讨论过后，学生们想到了许多好的方法去运作这个计划。故选D。