What colour do you think is the best for mobile phone?
Do you think everybody should get a free mobile phone?
Which apps do you use on your phone?
Game
Chat
Learn
Video
Other
When did you get your first mobile phone?
Primary school
middle school
High school
College
Why do you think a mobile phone is necessary?
Which brand of mobile phone do you have?
三星Samsung
华为Huawei
小米Xiaomi
Iphone
OPPO
VIVO
Other
Which brand of mobile phone do your friends have?
三星Samsung
华为Huawei
小米Xiaomi
Iphone
OPPO
VIVO
Other
Should old people have mobile phone?
If you could choose,which mobile phone would you prefer and why?