题目内容
–Look! Someone _____the classroom.
-Well, it wasn’t me, I didn’t do it.
A. is cleaning B. was cleaning C. has cleaned D. will clean
练习册系列答案
相关题目
题目内容
–Look! Someone _____the classroom.
-Well, it wasn’t me, I didn’t do it.
A. is cleaning B. was cleaning C. has cleaned D. will clean