完形填空 (共15小题，每小题2分，满分30分)
阅读下面短文，从短文后所给各题的A、B、C、D四个选项中，选出最佳选项。
Every year on my birthday, a white gardenia (栀子花) was 1 to my house. But no card or note came with it. Calls to the flower shop were always 2 -- it was a cash purchase. After a while I stopped trying to discover the sender’s identity and just 3 in the beauty and heady perfume of that one magical, perfect white flower lying in soft pink paper.
But I never stopped 4 who the giver might be. My mother 5 to these imaginations. She asked me if there was someone for whom I had done a special kindness who might be showing 6 . I had more fun imagining that it might be a boy I fell in love with or one who had 7 me even though I didn’t know him.
One month before my high-school graduation, my father died. My feelings 8 from sorrow to fear and 9 : my dad was missing some of the most important events in my life. I became completely 10 in my coming graduation, the senior-class play and the ball. But my mother would not hear of my losing any of those things. Mother and I had gone shopping and found an impressive dress, but it was the 11 size. When my father died, I forgot about the dress.
The day before my ball, I found that dress-- in the right size—hanging over the living room sofa. It was 12 to me so lovingly. I didn’t 13 if I had a new dress or not. But my mother did. She wanted her children to feel 14 , filled with a sense that there was a beauty even in the face of 15 .
My mother died ten days after I was married. The following year the gardenia stopped coming.
1. A. given B. delivered C. taken D. brought
2. A. useful B. helpful C. in vain D. hopeful
3. A. delighted B. pleasant C. pleasing D. satisfied
4. A. considering B. remembering C. imagining D. recalling
5. A. referred B. led C. preferred D. contributed
6. A. appreciation B. honor C. grateful D. respect
7. A. observed B. watched C. noticed D. hated
8. A. ranged B. differed C. suffered D. judged
9. A. shock B. happiness C. depressing D. anger
10. A. uninterested B. interested C. unhappy D. disappointing
11. A. wrong B. false C. proper D. right
12. A. provided B. presented C. introduced D. awarded
13. A. doubt B. wonder C. desire D. care
14. A. loving B. loved C. respected D. honored
15. A. trouble B. despair C. problem D. sorrow
成。已知常温下，Al(OH)3浊液的pH=3，其Ksp=1×10-36，则其中c(Al3+)＝ ▲ 。