完成句子。在横线上填入所缺部分，使句子完整。（注意：每空不止一个单词）
We have                      (更多的空余时间) for our hobbies now.
You’d better                         (不戴太阳镜) in the room.
I think he will succeed if he__________________________（坚持到底）
Something must be done__________________________(减少污染)
You ______________________________(不允许抽烟) in the library