题目内容：

the boy is playing basketball 否定句、一般疑问句、肯定回答、否定回答、对划线部分提问是什么?
划线部分是the boy

优质解答

The boy isn't playing basketball.
Is the boy playing basketball?
Yes, he is.
No, he isn't.
Who is playing basketball?
学习是一件愉快的事! (*^__^*)
请及时采纳,多谢!