I have thousands of classes since I started school rune years ago． But only one (51) was the most important．

It happened Iast term just after I had got a (52) result in an exam．l was sad and had lost my confidence．l decided to go to a class which can tell me how to be (53) ．

The speaker walked into the room． But he did not start talking like a teacher． Instead，he held up a twenty yuan note(钞票) !

"Who wants this?"he asked．( 54) 0f'us in the class put up our hands．

H．e smiled． Then he put up the note on the blackboard and asked the same question． A-gain，we all put up our hands． He smiled again but said (55) ． Suddenly，he threw the note on-to the floor! Then he asked the same question a (56) time．

I didn't understand what the speaker was doing． Why was he asking the same question a-gain and again? I wanted the note，(57) I put my hand up again． After a while，he (58) the note and started to laugh． "You have all just told me how to become successful． "

"The note is worth(价值) 20 yuan．It is (59) worth 20 yuan，even though I threw it on the floor． You are like the note． Whatever happens to you，you still have your worth．

Suddenly I (60) I was worth a lot．l may have done poorly in an exam，but it doesn't mean I can't do well in the future． If I believe in myself，l will be successful!( )51．

A． school

B． class

C． exam

D． term