阅读下面短文，从各题所给的选项中选出最佳答案。
When I was in a primary school, I argued with a boy in my class. I forget what the argument was about, but I will never forget the ______ I learned that day.
I thought that I was right and he was wrong._______ he thought that I was wrong and he was right. The teacher______ to teach us a very important lesson. She brought us to the front of the class and asked him to stand on one side of her desk and me on _____. In the middle of her desk was a large , round ball. I could ____ see that was black . She asked the boy what color the ball was.”White,” he answered.
I couldn’t ______he said the ball was white, while it was obviously(明显地)black! Another argument started ______ us. This time it was about the _____of the ball. The teacher told us to change the places and then asked me what color the ball was. I answered, “White.” It was a ball with _____ differently colored sides, and from his side it was white. Only from my side it was black.
Sometimes we need to _____ problems from the other person`s opinion in order to truly understand his or her opinion.

A．story B．lesson C．accident D．plan

A．but B．because C．unless D．so

A．discussed B．told C．asked D．decided

A．the others B．others C．the other D．other

A．hardly B．clearly C．loudly D．quietly

A．hear B．depend C．believe D．answer

A．across B．against C．inside D．between

A．color B．size C．shape D．height

A．four B．three C．one D．two

A．look at B．look after C．look like D．look forward to