作业帮They have to sleep before ten.(变为否定句,一般疑问句并作否定回答)
来源：学生作业帮助网 编辑：作业帮 时间：2024/06/01 20:11:36
They have to sleep before ten.(变为否定句,一般疑问句并作否定回答)
They have to sleep before ten.(变为否定句,一般疑问句并作否定回答)
They have to sleep before ten.(变为否定句,一般疑问句并作否定回答)
They do not have to sleep before ten.