Every year on my birthday, from the time I turned twelve, a white gardenia was delivered t

Every year on my birthday, from the time I turned twelve, a white gardenia was delivered to my house. No card or note came with it. 1 to the flower shop were always useless---it was a cash 2 . After a while I stopped trying to 3 who the sender was and just delighted in the beautiful and perfume of the white flower. But I never 4 imagining who the sender might be. Some of my 5 moments were spent daydreaming about it.
My mother asked me whether there was someone for whom I had done a(n) 6 kindness who might be showing 7 . Perhaps the neighbor I helped when she was 8 a car full of groceries. Or maybe it was the old man 9 the street whose mail I helped to get during the 10 so he wouldn’t have to venture down his icy step. As a teenager, 11 , I had more fun guessing that it might be a 12 who had noticed me 13 I didn’t know him.
One month before my high school graduation, my father died of a heart attack. He was 14 some of the most important events in my life. I became completely 15 in my upcoming graduation and the dance. When my father died, I 16 the dance and the dress for it. The day before the dance, I found a dress on the sofa. I didn’t 17 if I had a new dress or not, but my mother did.
She wanted her children to feel 18 and lovable, imaginative, believing that there was a 19 in the world and beauty in the face of hard times. Actually mother wanted her children to see themselves much like the gardenia-lovely, 20 and perfect. The gardenia stopped coming when my mother died.
1. A. Calls B. Quarrels C. Messages D. Letters
2. A. service B. deal C. bargain D. offer
3. A .recognize B. imagine C. wonder D. discover
4. A. failed B. stopped C. succeeded D. enjoyed
5. A. saddest B. painful C. happiest D. loneliest
6. A. special B. common C. valuable D. important
7. A. concern B. attitude C. interest D. appreciation
8. A. repairing B. washing C. unloading D. starting
9. A. across B. through C. from D. onto
10.A. spring B. summer C. autumn D. winter
11. A. though B. anyway C. therefore D. indeed
12. A. friend B. superman C. teacher D. boy
13. A .as if B. even though C. in case D. so that
14. A. considering B. expecting C. missing D. preparing
15. A. disappointed B. uninterested C. discouraged D. concentrated
16.A. forgot B. lost C. hated D. expected
17. A. wonder B. believe C. care D. know
18. A. contented B. respected C. thanked D. loved
19. A. trouble B. magic C. tragedy D. comedy
20. A. strong B. beautiful C. smelly D. lucky1-20 ADBDD ADACC BABDB DDABA

(答案→)1-20 ADBDD ADACC BABDB DDABA 解析：1. A. “打电话”询问送花人是谁。2. B. a cash deal 现金交易，暗示没有留下姓名、地址。3. D. try to discover 尽量查明。此空不用imagine, 否则与下句相互矛盾。4. B. 从未停止过。fail和succeed后接in doing.5. C. 心情愉快。其它三个选项意义相反。6. A. special的含义可包括valuable和important。7. D. 表示感激。8. C. 由full of groceries 可知帮助“御货”。9. A. 横过马路。10. D. 下文中的icy表明“冬天”。11. A. 表示转折。12. D. 从下段的dress可知作者是女性。在此表示也许是一个男孩看上了她。13. B. 让步状语从句。14. C. miss失去。15. B. 对……不感兴趣。因为下文涉及作者忘记了舞会的事情，对礼服也不关心。16. A. 忘记。此空应与上空结合起来考虑。17. C. care = mind 关心，在意，计较。18. D. feel loved感受到被爱。19. B. 魔力。下文谈到生活就象可爱的栀子花，使作者充满暇想。20. A. 坚强。perfect(完美) 包含beautiful的意思，故B不可选。

我明天再问问老师，叫他解释下这个问题

对的，就是这个意思

40°解析分析：首先过点C作CF∥AB，由AB∥DE，即可得AB∥DE∥CF，然后由平行线的性质，即可证得∠BCF与∠DCF的度数，继而求得