题目

The project alongside with the experiment we had once
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 为啥选c,请帮忙分析一下句子成分,

提问时间：2021-04-01

答案

devote sometime to sth花时间在某事上这句话的主干：The project along side with the experiment worked out perfectly.这个项目和实验完美运行.we had once devoted so much time to是定语从句,修饰the experimen...