二、语法填空。

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。

Once there was a teacher who took all his students for tea.What made the students __16__ (surprise) was that all the cups on the table were __17__(difference).Each of them took a cup and started __18__ their own tea，looking at the __19__ cups.

The teacher said，“Do you notice your __20__ (behave)?You are all looking at each other's tea cups and __21__ of you even envy (羡慕) the __22__ (fine) cups of others.”Then he went on：“I put the different cups here on purpose!Life is like the __23__.You all have the same thing in your cups—tea.And yet you can't __24__(real) enjoy it in your envy of another's cup.You forget __25__ your own life when you envy someone else's life.So now，taste your own tea! Does it matter from which cup it comes?”

16.surprised 17.different 18.drinking 19.others

20.behavior 21.some 22.finer 23.tea

24.really 25.to_enjoy