中科新闻网是一部内容开放、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:中科新闻网 时间:2024/05/13 15:41:36
she begins worjing at eight o'clock
begin ->begins
Mary works at bank.she begins working at eight o'clock.