1、When someone makes a mistake, don't laugh at him.
2、Sorry, I have taken your book by mistake.
3、You'd better make notes in every lesson.
4、We must learn how to turn these problems into challenges.
5、At last, Lily practiced her oral English by making dialogues.
6、I'm afraid of speaking in front of the classroom.
7、The audiovisual tape is the best way to learn English.
8、Have you ever studied with a team?