题目内容：

阅读下面短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项。

Learning a life lesson on managing time

One day，an expert was speaking to a group of students about how to manage their time．He   ________ an example those students will never forget．

He pulled out a wide jar and put it on the table．He also  ________  about a dozen rocks and carefully  ________ them into the jar．One at a time．When no more rocks would ________ inside，he asked，“Is this jar full？”

Everyone in the class answered loudly，“Yes．” The expert said，“Really？” He   ________ under the table and pulled out a bucket of gravel (砾石)．He put some gravel in and  ________ the jar，causing it to go down into the  ________ between the big rocks．He then asked the group once more，“Is this jar full？”

“  ________ not，” one of them answered this time．“Good！” he replied．From under the table he brought out a bucket of sand and started  ________ the sand in the jar and it went into all of the spaces left   ________  the rocks and the gravel．Once more he asked the question，“Is this jar full？”

“No！” the class shouted．Once again he said，“Good．” Then he   ________  a cup of water in   ________  the jar was full．Then he looked at the class and asked，“What is the  ________ here？”

Immediately one  ________ student raised his hand and said，“The point is，no matter how full your  ________  is，if you try really hard you can always fit  ________ things in！” “No，” the expert replied，“that’s not the point．The point is if you don’t put the big rocks in   ________ ，you’ll never get them in   ________．What are the ‘big rocks’ in your  ________ ？Time with your loved ones，your education，or your dreams？Remember to put these big rocks in first or you’ll never get them in at all，________ you’ll never have the real quality time you need to spend on the big，important things．”

1.A．set               B．gave               C．made           D．followed

2.A．handed out        B．passed on          C．took out       D．picked up

3.A．threw             B．spread             C．turned         D．placed

4.A．come              B．push               C．fall           D．fit

5.A．reached           B．sat                C．got            D．stopped

6.A．shook             B．covered            C．pressed        D．raised

7.A．bottom            B．distance           C．areas          D．spaces

8.A．Usually           B．Probably           C．Obviously      D．Simply

9.A．inserting         B．packing            C．putting        D．mixing

10.A．beside           B．between            C．around         D．among

11.A．allowed          B．forced             C．sank           D．poured

12.A．until            B．before             C．so that        D．as far as

13.A．reason           B．result             C．point          D．matter

14.A．clever           B．eager              C．sensitive      D．curious

15.A．schedule         B．container          C．time           D．class

16.A．enough           B．small              C．extra          D．more

17.A．first            B．once               C．properly       D．immediately

18.A．at all           B．after all          C．at last        D．any more

19.A．mind             B．list               C．life           D．world

20.A．and              B．while              C．but            D．for