题目内容：

Mark was walking home from school one day when he saw a boy in front of him. He had dropped all of the books he was   16  , along with two sweaters, a basketball and a walkman (随身听).

Mark stopped and helped the boy pick the things up.   17   they were going the same way, he helped to carry some of his things. As they walked, Mark   18   that the boy’s name was Bill. He loved computer games, basketball, music and history,   19   he was having trouble with some of his   20   in school.

They arrived at Bill’s home first and Mark was   21   in for a Coke and to watch some television. The afternoon passed   22   with a few laughs and some small talk, then Mark went home.

They continued to   23   each other at school, had lunch together once or twice a week, and then they   24   finished middle school. Three weeks before they left school, Bill asked Mark if they could talk.

Bill reminded Mark of the day years ago when they had first   25  . “Did you ever wonder   26   I was carrying so many things home that day?” asked Bill.

“You see, I cleaned out my locker (锁柜) because I didn’t want to leave   27   for anyone else. I was going home to kill myself. But after we   28   some time together talking and laughing, I   29   that if I killed myself, I would have missed many good times. So you see, Mark, when you   30   those books that day, you actually saved my life.”

1.A. reading        B. buying           C. carrying         D. writing

2.A. Since      B. When             C. While            D. Before

3.A. asked      B. learned          C. believed         D. answered

4.A. and            B. or               C. so               D. but

5.A. books      B. teachers         C. subjects         D. games

6.A. introduced B. invited          C. noticed          D. pushed

7.A. happily        B. slowly           C. quietly          D. easily

8.A. help       B. accept           C. see              D. change

9.A. all            B. each             C. either           D. both

10.A. met           B. worked           C. appeared         D. arrived

11.A. what      B. when             C. why              D. how

12.A. something B. anything         C. everything       D. nothing

13.A. took      B. wasted           C. spent            D. found

14.A. remembered    B. wondered         C. checked          D. realized

15.A. threw away    B. picked up        C. gave out         D. looked for