完形填空

    Someone says, "Time is money." But I think time is 1 important than money. Why? Because when money is spent, we can get it back. However, when time is2, it'll never3. That's why we4 waste time.

    It goes without saying that the 5 is usually limited. Even a second is very important. We should make full use of our time to do 6useful.

    But it is a pity that there are a lot of people who do not know the importance of time. They spend their limited time smoking, drinking and7. They do not know that wasting time means wasting part of their own 8.

    In a word, we should save time. We shouldn't9 today's work for tomorrow. Remember we have no time to10.