题目

题型：不详难度：来源：

The project alongside with the experiment we had once devoted so much time__________ perfectly.

A．to work out	B．to working out
C．to worked out	D．has worked out

答案

C

解析

考查句子结构。主语为The project后面是一个定语从句alongside with the experiment we had once devoted so much time to，to后面缺少宾语故先行词experiment后省略了关系代词which/that，整句话中缺少谓语，根据语境用worked out即The project worked out perfectly.故选C。