题目内容：

Just recently I had been wondering if there was much point in doing little acts of kindness.So often they get ____,and occasionally they come back to bite you!

Then,just last week,after a long travel.I found myself____at a bus station.The bus was four hours late!So,I guess I wasn’t in a good____.

That’s when a woman asked me if I had any spare____to help her get a bus ticket.

“Oh,sure.”I said sarcastically（挖苦地）.”How much would you like?”

As I spoke,I mentally kicked myself for my____and reached into my bag for some money.As I handed her five dollars.I heard low sounds from her stomach because of real____.

I reached back into my bag and brought out a____I had bought earlier.I handed it to her with a(n)____that I hoped would make up for my earlier tone of voice.Getting a____look at her now.I realized she was extremely tired, like she had had several months of____days!

As she took the food,a look of____washed over her.In return,she tried to give me a Milwaukee bus ticket!I don’t live in Milwaukee and the ticket will probably____be used,but I took it.

A few minutes later she came back over,apologized,and told me she was still____of five dollars.I took some singles out of my bad and slipped a twenty in there as well.____,the voice in my head told me I was being a fool.

Five minutes later she came back again and tired to____my twenty.When I said it was for her so she could get something else to____,and that I was completely serious and I wasn’t taking it____,she started crying and hugged me.

From now on,when I wonder if it is____trying to help someone,I will remember that woman.Maybe I an really making a____for someone.So,sure,sometimes my efforts might not be noticed,and sometimes they might come back to bite me,but they might actually____another human being!

1.A. ignored    B. appreciated    C. acknowledged    D. forgiven

2.A. examined    B. trapped    C. confused    D. delayed

3.A. habit    B. place    C. mood    D. situation

4.A. change    B. time    C. hand    D. energy

5.A. appearance    B. attitude    C. selfishness    D. experience

6.A. pain    B. anxiety    C. hunger    D. fear

7.A. souvenir    B. ticket    C. gift    D. cake

8.A. shout    B. smile    C. apology    D. praise

9.A. quick    B. gentle    C. good    D. cold

10.A. dark    B. tough    C. mysterious    D. special

11.A. relief    B. regret    C. doubt    D. anger

12.A. once    B. often    C. sometimes    D. never

13.A. ashamed    B. aware    C. short    D. proud

14.A. Eventually    B. However    C. Therefore    D. Besides

15.A. return    B. show    C. share    D. earn

16.A. do    B. trade    C. add    D. eat

17.A. away    B. out    C. back    D. over

18.A. hard    B. fun    C. useless    D. worth

19.A. difference    B. profit    C. decision    D. suggestion

20.A. excite    B. help    C. educate    D. inspire