早教吧 育儿知识 作业答案 考试题库 百科 知识分享

The house could fall down soon if no one ( )some quick repair worka.has doneb.is doing c.dosed.had done

题目详情
The house could fall down soon if no one ( )some quick repair work
a.has done
b.is doing
c.dose
d.had done
▼优质解答
答案和解析
c