16. 阅读短文，完成以下问题。
There is a telephone on my desk. It's my good friend. It helps me a lot. My telephone number is 8445816. Sometimes when I have something to talk about with my classmates. I don't need to go out. I call them. I write down many telephone numbers of my friends. My best friend John's number is 8459471. When I can't remember my homework, I ask him by telephone. There are some "Telephone Messages" beside my telephone. When I am out, my mother writes down the massages for me.
（1） Whose telephone number is 8445816?
A . John's mother's
B . His own
C . His classmate's
D . John's
（2） What time does he call his classmates?
A . When he doesn't know how to do his homework.
B . When he doesn't remember the telephone numbers of others.
C . When he forgets what the homework is.
D . When he doesn't need to go out.
（3） Why does mother write down the massage for him? Because ________.
A . he isn't out
B . he is working at his lessons
C . he forgets the phone number
D . he isn't in
（4） What does he think of the telephone?
A . Useless
B . Important
C . Best friend
D . Helpless
（5） Where is the telephone?
A . In his office.
B . In his house.
C . In his classroom.
D . In his room.
