题目内容：

短文填空

阅读下面材料，在空白处填入适当的内容（1个单词）或填入括号中单词的适当形式。

A proverb says, "Time is money". But in my opinion, time is even __1.__ precious than money. Why？2. _ when money is spent, we can earn it back. However, when time is __3._（go） , it will never return.   4._ is known to all that the time we can use is limited. Therefore we should make 5._ use of our time to study hard so as to serve our country in   __6._ future. But it is a pity that there are a lot of people   __7._ do not realize the value of time. They waste their precious time smoking, drinking and playing. In __8. word, we should form the good habit of __9._ (save) time. Do not put off what can be done today   10. tomorrow.