The students were busy doing their()when the teacher entered
The students were busy doing their()when the teacher entered
The teacher entered the classroom quietly when we were doing
The students were busy doing their homework,only____ once in
The students were reviewing their lessons when the teacher c
When the teacher entered the classroom,he found the students
求一句英语句型the students were busy with their homework when the t
When I entered the classroom, our teacher announced we were
when the teacher came in,the students were doing homework.的同
they were talking to their teacher.I saw the students.(用when
The students were waiting for their teacher in the classroom
The students were listening to the teacher,with their eyes__
when the teacher came into the classroom,the students were (