A

	I am Alice. I like We chat. It is fast, convenient and fashionable. And you can use it for free. It can be used in my mobile phone. It has hold-to-talk voice messaging function. I am a fan of Leehom Wang. Through We chat, Leehom Wang often says something to me. It’s amazing.
	I am David. I love Micro blog. I update my Micro blog when I am free. We can share instant(即时的) messages with each other. I often look through Yao Chen’s Micro blog. She has many followers. I make many friends with them. I often write something on my Micro blog, for example, “I’m in blue today. I didn’t pass the exam.” Then many friends comfort me. I share my birthday party, my new phone, my new coat, etc. with my friends. It is fun.
	I’m Lily. I don’t like We chat or Micro blog. I don’t believe them. There are so many crimes(愚蠢行为) on We chat. Many people are cheated(欺骗) because they believe in other people they meet on We chat easily. It is not a real world. As to Micro blog, I don’t think it is a good way to make friends. And you should write something no more than 140 words. I like keeping diaries. I don’t want my secrets known by others. I am a low-key(低调的) girl.

 Mobile phones are not so expensive as they ___________ to be.  

A. are used            B. were used        C. use               D. used

Every mobile phone has a ringtone(铃声). It tells you that someone is calling you. Now, there  _        a ringtone called “mosquito tone(蚊子铃声)”.
Mosquito tone has a special       . Only children and teenagers can hear it. Using it, students can receive calls and text messages in class          the teacher will not realize what is happening. However, it also has a bad influence on their study if students use it in class.
“Not all the students are            in mosquito tone.” Jerry Jones, a high school student of 17, says, “Using mosquito tone too often is bad for our hearing. I may use it for          , but not in class

The mobile phone is useful to us, and we can use it _______others at any place.

A. call B. calling C. to call