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
The young should learn to make decisions by ． （they）
It's important for everyone to know how to ask for help ． （polite）
Grace loves dancing． She wants to be a when she grows up． （dance）
将划线部分的英语译成汉语，注意使用适当的形式．
Building a beautiful countryside is what we hope for and what we'll work hard for．
将划线部分的英语译成汉语，注意使用适当的形式．
I like taking a walk in the bamboo forest because the air there is clean and fresh．