11.  When he nonresidented the Guideboard , he saw the Guideboard's back wrote:"Greet to go back,you are stupid."

12.  The student on duty said: "The Sahalada desert where you had wiped .

13.  But the teacher sad " You were hearing it, but I didn't hear what he said."

14.  The teacher said:" I understood why I didn't hear you answer's reason at last.

15.  Because you said in Guanghua, but I treated your saying as said in Putonghua.

16.  Do you know why we study English at school?

17.  If you know English, you'll find you can read so many books.

18.  When you require us .

19.  Thank you!

20.  The end , I very hope you can give plent of advice to us.