***参考答案*** 

1-5 CABCB 6-10 BCBCA 11-15 BABCA

16-20 ACBDB 21-25 CBADC 26-30 ACBAD

31-35 BCADB 36-40 ADCBA 41-45 BBCAD

46.thankful 47.is crying 48.bottles 49.took off 50.above 51.cleaner 52.carefully 53.fifteen 54.added 55.members 56.active 57.its 58.exactly 59.forget 60.art

61.an 62.lies 63.of 64.completely 65.lights 66.was created 67.they 68.manager 69.providing 70.Although/Though/While

71-74 BEAD

75.本小题为开放性试题，没有唯一答案。

One possible version

Last month,our class had a charity sale.Two days before the sale,we handed out notices to make our sale known by others.Then we made different things like food and toys.It was so much fun! When everything was ready,we started to sell the things.To our surprise,all the things were sold out in a short time! At last,we gave away the money we made to Children's Home.

I think it was a meaningful exeperience.Making things helps develop our life skills.Meanwhile,we can learn how to communicate with others well.Last but not least,helping people makes us happy.(98 words)