题目内容：

I am a mom of two young children whom we home-school. This    that they are with me almost constantly. Whenever possible I will    random acts of kindness;    things like paying for the order behind me in the drive-thru lane, holding doors, etc. So, they are very    with the concept and are, of course,       to also do "nice" things for others.

Just a few days ago we stopped    our local grocery store to pick up a few things which quickly turned into an entire cart load of stuff. We got into one of the two open checkout lanes and waited our   . While waiting a young man came up behind us with only a few    in his basket. I told him to go ahead of us as we were in no   .

He seemed very pleasantly surprised and graciously   . As he began putting his items on the belt the clerk began to    her till tape so we had a fairly long wait in line. My kids were very    behaved but they were still children; they asked questions, they talked   , they moved around and they were generally very entertaining. (To me, anyway.)

I could see the young man watching and listening with a smile on his face.

We were putting our groceries on the    when the clerk finished with    order. What I didn't know was that he had heard my kids    bubble gum. I had agreed they could have some.   , he picked up a pack of bubble-gum and asked the clerk to ring it through twice before putting it back. He then told my kids that he bought their gum    their mom was    enough to let him go ahead in the queue.

The experience really drove home the    that good begets(产生，引起) good for my lovely little kiddos（亲呢的称呼：小伙子）.

1.A．tells   B. leaves C. means  D. ensures

2.A. entertain B. serve C. function D. perform

3.A. important B. impressive C. suitable D. simple

4.A. satisfied B. occupied C. familiar D. pleased

5.A. supported B. taught C. encouraged D. supposed

6.A. near   B. by  C. with D. against

7.A. opportunity B. return C. turn D. time

8.A. fruit   B. vegetables C. items D. sales

9.A. time   B. hurry C. case D. sense

10.A. accepted B. collected C. carried D. agreed

11.A. change B. remove C. continue D. stop

12.A. badly   B. poorly C. well D. ill

13.A. constantly B. immediatelyC. usually D. rudely

14.A. belt   B. bench C. basket D. cart

15.A. her   B. his C. their  D. our

16.A. complain about B. allow for C. ask for D. concern about

17.A. So   B. But C. Or D. For

18.A. when  B. unless C. because D. until

19.A. happy B. helpful C. serious D. nice

20.A. idea   B. reward C. chance  D. instruction