问题补充：
Dear sir
I’m a middle school student. I have something to talk with you. In my school, many students have mobile phones（手机）.They think it’s cool to have a mobile phone. Really the phones come in fun colours and let students talk with their parents and friends at any time. But I don’t think it’s good to send messages（短信）.It takes them a lot of time to do that. Some students always hope to buy the latest mobile phones and this will waste（浪费）their parents’ money. And my father tells me that most mobile phones can cause health problems. Could you do something to stop it?
Yours
Mary
【小题1】Students use mobile phones to.A．talk with their parents and friends and send messagesB．learn from othersC．study EnglishD．talk with their teachers【小题2】The students want to have the latest mobile phones. And it will.A．waste their parents’ timeB．waste their parents’ moneyC．save their timeD．save their money【小题3】The writer thinks that students.A．can’t use a mobile phone at homeB．should use mobile phones at any timeC．must have a mobile phone at schoolD．shouldn’t use a mobile phone at schoolA【小题1】B【小题1】D
答案：
(答案→)A【小题1】B【小题1】D
解析：
【小题1】根据Really the phones come in fun colours and let students talk with their parents and friends at any time. 描述，可知选A
【小题1】根据Some students always hope to buy the latest mobile phones and this will waste（浪费）their parents’ money.可知选B
【小题1】根据作者描述，可知他认为学生在校不应该用手机。故选D
