书面表达，编一个上午英语课上课时的对话

　　T表示教师　　S表示学生

　　M表示班长　　

T: Class begins.(上课)

M: ________

T: ________

S: ________

T: ________

Her little brother was afraid________falling behind others.

[　　]

You'd better go for a little rest.

[　　]

He put his exercise book________of mine.

[　　]

A．at top

B．on top

C．at the top

D．on the top

 ________do you go home?

 Once a week.

[　　]

A．How soon

B．How long

C．How often

D．When