用方框中所给单词的适当形式填空， 使短文正确、通顺、每词限用一次：

There are many ways for us to reduce waste . For example , we can reuse paper and plastic bags . We can also（recycle）newspapers , glass and cans to make new things . Here are some （useful）ways to reduce waste.
Write on （both）sides of paper
Many people write on only one side of their paper . Why not stop wasting the other side ?Some students only use half the pages of their （notebooks）before getting new ones . Try to use up all the paper .People often often give cards on （birthday） or festivals . How about （sending）e-cards instead ?

Maybe throw away your old batteries. Have poisonous （有毒的）parts in them . So , don’t throw away batteries . Keep them（together） .Try to use rechargeable （充电的）batteries for your games and CD players .
Give off all your unwanted clothes.
There are many poor families in China . You may （collect）your unwanted clothes . Then you can pass them on to those poor （children）. You can also feel（happy）when you help someone.

由后面的classical
music
可以判断是在谈论关于音乐的种类，所以第一个空填kind;后一个空是be
动词修饰形容词的用法，而所提供的形容词中只有serious翻译得通，是说我不喜欢古典音乐的原因，是因为它太严肃了，所以第二个空填serious。