第1个回答 2012-12-05
Students don't have to stand up when the teacher come into te classroom.
大多数老师允许学生在有必要的时候迟到或者早退。
第2个回答 2012-12-05
It is not necessary for students to stand up when teachers enter the classroom.
如果有必要,大多数老师会允许学生上课迟到或早退。
第3个回答 2012-12-07
students don't need to stand up when the teacher enters the classroom.
大多数老师在必要时都允许学生迟到早退的。