完形填空。(24分)
This is our class  ______.______ run in the classroom.Please  ______ quiet in class.Don't eat in ______．And don't ______ in class.Don't ______ with others.
（1）A.rule    B．rules    C．rulers
（2）A.Don't    B．don't    C．please
（3）A.am     B．is     C．be
（4）A.classmate   B．class    C．glass
（5）A.sleepy    B．sleeping   C．sleep
（6）A.talk    B．tell    C．speak