高校问答是一部内容开放、自由的互动网络百科全书客观、专业、权威的知识性百科全书
来源:百度文库 编辑:高校问答 时间:2024/07/06 11:09:36
Did he use to be late? He used not to be late或He didn't use to be
Did he used to be late?He didn't use to be late.
He didn't use to be late Did he use to be late