就青少年话题写作表达观点 — 英语填空题
题目
假定你要写一篇关于青少年是否应该使用手机的短文，请根据句意和首字母提示补全观点句：As a teenager, I b_______ that we should use phones w_______, for example, no more than one hour a day, because spending too much time online is bad for both our study and h_______.