完形填空（共20小题；每小题1．5分，满分30分）
阅读下面短文，从短文后所给题的四个选项（A 、B、C 、和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
A philosophy professor loved to teach students about important theories of the subject．Once, while his 21  was about to begin, he just closed the book and  22  stood before his class with some items on the table in front of him． Students were curious but the professor without looking at them 23  a very large and empty jar．And then he started to 24  it with small rocks．25 the jar appeared full, the professor asked his students whether the jar was full
The entire class 26   that jar was indeed full．Next, the professor picked up some  27   and began pouring them into the jar．The moment pouring was 28  , he shook the jar lightly．As a result of that, all the small rocks 29 the open areas between the rocks comfortably． 
Professor again asked the students if the jar is full．Same  30    from the class like before．Professor  31   a bit but silently, and this time he picked up a box of sand．He poured the box into the jar and sand filled the entire 32  spaces．At the same time, professor 33  his question to the class, if the jar was full? Yes again．
Professor now  34  towards the class and said, this jar  35  your life．All the things in the jar I poured mean some important lessons．The rocks are the most important things,  36  is family, your partner, health and your  37  ．Even if everything else in your life goes away but the rocks remains there, your life would still be full  38   the most important things are still present in your life．Pebbles represent other significant things like car, house and job etc．And the sand is the small stuff or everything else．
If your time and 39 is spent on small stuff then there is no 40 for the pebbles or the rocks or in other words, most important things of your life．

A．lecture B．talk C．speech D．letter

A．though B．besides C．otherwis D．instead e

A．pointed to B．picked up C．took out D．sent up

A．fill B．fix C．put D．turn

A．Soon B．Instantly C．Luckily D．Hopefully

A．argued B．told C．suggested D．agreed

A．rocks B．stones C．sand D．water

A．understandable B．complete C．reliable D．adjustable

A．response B．comment C．order D．content

A．spoke B．cried C．scolded D．smiled

A．left B．available C．getting D．remaining

A．asked B．answered C．repeated D．discussed

A．turned B．looked C．walked D．moved

A．means B．represents C．competes D．matches

A．which B．that C．what D．it

A．wealth B．business C．children D．friends

A．because B．if C．once D．while

A．energy B．money C．power D．strength

A．hope B．need C．room D．doubt