TikTok，known as Douyin in China，is a mobile app allowing users to create，share and watch short videos.     Developed by：ByteDance     Users：13+

Joe Thomas     It seems very enjoyable.However，it's difficult to stop once you start watching its videos.It's not a good idea to spend too much time on it.

Alice Brown     I like the app because it allows me to share my daily life and make new friends.What's more，I have won more popularity for the videos I created.Now I have more than 10 million fans.

Adam Young     There is no need for us to use this app.My friend Tom Smith spends most of his spare time on TikTok.I think he should spend time on more meaningful things，such as exercising or reading.

（1）TikTok is suitable for users aged 　 　.

A.7

B.20

C.12

D.10

（2）Joe Thomas thinks that you may 　　 while watching TikTok.

A.spend too much time

B.get bored easily

C.waste too much money

D.learn some harmful information

（3）TikTok has made 　　 popular for his （her） videos.

A.Joe Thomas

B.Tom Smith

C.Adam Young

D.Alice Brown