早教吧 育儿知识 作业答案 考试题库 百科 知识分享

I spend time as much as I could _____ the math problem.A.work outB.to work outC.working outD.to work on

题目详情
I spend time as much as I could _____ the math problem.
A.work out
B.to work out
C.working out
D.to work on
▼优质解答
答案和解析
C
我尽可能地花时间来解决数学问题
这里的句型是spend time in doing sth
in 可以省略