15. —We've walked for an hour. Why not stop to have a rest?
A. I agree
B. I'm sure
C. I don't think so
D. I'm afraid not

16. I never thought that a little help would turn out to be the most pleasant thing I had done till one day.
Once I saw a young man in the doorway of my home. 16 was wrong with his two legs and he was playing an operation. He was tired, in pain. With a smile, he asked if I could help him with some tricks to raise money for 17 . I was always full of 18 and even asked him to show me his legs. Finally, I gave him the rest of the money he needed. After a few days, he again appeared at my doorstep, asking for more money for accommodation (住宿). This time I was sure he was not cheating me. I gave him some and said that was all I had.
A year 19 I moved to a new place. One fine day I got a call from a 20 number. The caller told me his name, 21 I couldn't recognize (识别) him. Then he said he was the very person I helped a year ago.
22 he was going.
“With your kind help I am now able to 23 on my legs without support. The operation was 24 . I am married and have a good job.”
I didn't 25 remember him and have given him my phone number. However, what he said next was 26 . He said he wanted to return me the money 27 I wouldn't feel cheated and would go on to help people in need in the future. I didn't know whether he 28 my expression on my face that day when I helped him, but tears were 29 my face.
From then on, I promised (承诺) I would 30 to help people as long as I had an opportunity—small or big. It was really a life - changing event in my life.
16. A. Something
B. Anything
C. Nothing
D. Everything

17. A. clothes
B. food
C. water
D. money

18. A. hope
B. doubt
C. joy
D. energy

19. A. before
B. ago
C. earlier
D. later

20. A. right
B. wrong
C. strange
D. special

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

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

23. A. live
B. stand
C. run
D. jump

24. A. difficult
B. comfortable
C. successful
D. unfinished

25. A. also
B. only
C. already
D. even

26. A. funny
B. boring
C. crazy
D. touching

27. A. so as to
B. so that
C. until
D. in order to

28. A. read
B. gave
C. took
D. wrote

29. A. putting on
B. making up
C. running down
D. getting off

30. A. continue
B. fail
C. stop
D. refuse