The teacher came into the classroom smiling at us. 是英语中的什么句子

The teacher came into the classroom smiling at us. 是英语中的什么句子 英语.是这样滴 同义句转换：The teacher came into the classroom ,and at th the teacher came into the classroom quiet When the teacher came into the classroom, all of us ________ When the teacher came into the classroom,the students _____( When the teacher came into the classroom,the students ______ When the teacher came into the classroom, the students ____ 1.When the students came into the classroom,the teacher ( ) when the teacher came into the classroom,the students were ( When the teacher came into the classroom, the students _____ When the teacher came into the classroom, the students   When the teacher came into the classroom, the students stopp