查人人中国名人网科大智收购冠致的原因:请用英语翻译"我们进教室时,老师已经开始讲课了"
来源：百度文库 编辑：查人人中国名人网 时间：2024/05/12 06:14:08
用过去进行时回答
The teacher had started the lesson when we stepped into the classroom.主句要用过去完成时态。
The teacher began the class when we enter the classroom.
Class had begun, when we stepped into the classroom.
The teacher didn\'t begin the class,until wo come in the classroom.