The teacher is standing ___the class (on,in,before,to).选完后并翻译,
问题描述：
The teacher is standing ___the class (on,in,before,to).选完后并翻译,
答
before
老师正站在全班同学面前。
学习是一件愉快的事！ (*^__^*)
请及时采纳，多谢！
答
before 老师站在教室前
答
before
老师站在全班同学面前.