题目内容
【题目】---Are they cleaning the windows? ( )
--- ____________.
A. Yes, they do.B. Yes, they are.C. Yes, they is.
【答案】B
【解析】
略
练习册系列答案
相关题目
题目内容
【题目】---Are they cleaning the windows? ( )
--- ____________.
A. Yes, they do.B. Yes, they are.C. Yes, they is.
【答案】B
【解析】
略