题目内容：

We are often warned by our teacher not to waste precious time, because time _______ will never return. I think it quite _______. What does time look like? Nobody knows for we can’t see it or _______ it and no amount of money can ________it. Time is abstract, so we have to _______ about it.

Time passes very quickly. Some students say they don’t have _______ time to review all their lessons. It is because they don’t know how to make _______ of their time. They waste it in going to theatres, cinemas and parks, and doing _______ things. Why do we study every day? Why do we________? Why do most people would rather ________ buses instead of walking? The ________ is very simple. We wish to save time because time is ________.

Today we are living in the 21st century. We look upon time as ________. When a person dies, his life ________. Since life is short, we must ________ our time and energy to our study so that we may be able to ________ the people well in the future. Laziness is the ________ of time, for it does not only bring us failure but also ________ us other harm. If it is necessary for us to do our work today, let us do it today and not ________ it until tomorrow.

Remember that time is much more ________ than money.

1.A. lost    B. found    C. expected    D. made

2.A. false    B. true    C. abstract    D. valuable

3.A. get    B. have    C. see    D. touch

4.A. find    B. buy    C. sense    D. realize

5.A. worry    B. discuss    C. advise    D. think

6.A. enough    B. little    C. valuable    D. useful

7.A. up    B. light    C. use    D. fun

8.A. other    B. another    C. some    D. any

9.A. drink    B. eat    C. think    D. work

10.A. borrow    B. get    C. make    D. take

11.A. question    B. answer    C. problem    D. method

12.A. valueless    B. precious    C. endless    D. fast

13.A. money    B. life    C. gold    D. water

14.A. comes to    B. begins    C. ends    D. lives

15.A. waste    B. devote    C. put    D. value

16.A. ask    B. remember    C. save    D. serve

17.A. friend    B. maker    C. mother    D. thief

18.A. brings    B. does    C. takes    D. sends

19.A. leave    B. forget    C. remain    D. stay

20.A. useful    B. cheap    C. heavy    D. valuable