When I was in Grade 5， I had a fight with a boy named Tony in my class． I have forgotten what the fight was about， but I have never forgotten the（1） 　　I learned that day．

I thought that I was right and he was wrong﹣ and Tony just thought that I was wrong and he was right．The teacher， Mrs． Green， decided to teach us a very（2） 　　lesson．

Mrs． Green asked us to stand on each side of her desk． In the middle of her desk was a large，round object． I could（3） 　　see that it was black． She asked Tony what（4） 　　the object was． "White，" Tony answered． I couldn't（5） 　　Tony said the object was white， when it was black! Another fight started（6） 　　us， this time about the color of the object．

The teacher told me to go and stand where Tony was standing and told him to come and stand where I had been．（7） 　　 changed places， and now she asked me what the color of the object was， I had to answer，" （8） 　　 "It was an object with（9） 　　 differently colored sides． From Tony's side it was white，（10） 　　 from my side it was black．

（1）A． fight	B． lesson	C． teacher	D． classmate
（2）A． difficult	B． boring	C． safe	D． important
（3）A． loudly	B． widely	C． clearly	D． heavily
（4）A． color	B． size	C． shape	D． time
（5）A． decide	B． believe	C． doubt	D． promise
（6）A． under	B． behind	C． between	D． beside
（7）A． She	B．He	C． They	D． We
（8）A． White	B． Black	C． Brown	D． Purple
（9）A． one	B． two	C． three	D． four
（10）A． or	B． nor	C． but	D． since