英语作文语法问题（打括号应该改为什么,谢谢啦!）

英语作文语法问题（打括号应该改为什么,谢谢啦!）
Staying away from electronic devices
Some students spend much time on electronic devices, such as playing computer games, watching films and so on. I think Eric Schmidt’s advice is very useful.（ I agree his advice. ）In my opinion, having more time to talkface-to-face with their friends and parents（ are all ）very important. Of course, playing computers games can also relax ourselves.（So everything is moderate.）