题目内容
选择正确答案
-- What is he doing?
-- __________.
A. He is my father
B. He is playing with his train
C. He is Ok
答案:B
![](http://thumb2018.1010pic.com/images/loading.gif)
练习册系列答案
相关题目
题目内容
选择正确答案
-- What is he doing?
-- __________.
A. He is my father
B. He is playing with his train
C. He is Ok