阅读下面短文，掌握大意，然后从每题所给的A、B、C、D四个选项中选出最佳选项。
A Second Chance
I grew up as a foster（收养的） child from the day I was born. I never really had a biological（有血亲关系的） mother. I never experienced the
1a mother gives her child. Five years ago, I came to my second foster home. It was a
2 family, but still something pained me deeply. I wasn't her birth child. So I don't allow myself to get close to
3 . I felt "out of place".
In one night,
4, things changed. I was doing homework while waiting for the family to return home. Feeling so bored, I spent the night alone finding things to keep me
5. As I was reading a book, I heard the closing of the back door and my foster mom
6me. I walked into the kitchen where she was holding a children's book. "I want you to read this book. It's really wonderful!" She said
7 . She handed me the book, I had a quick look at it:
The Kissing Hand. I wanted to question her when she
8me. "Trust me. You'll love it."
It was (a)
9of a raccoon（浣熊）mom who places a kiss in the palm（手掌）of her child's hand. She wants to let him know if he is
10, he just needs to put his Kissing Hand to his face. That
11 he can always remember his mom loves him.
Later that night, I was sitting on the sofa when
12 mom did something really unexpected. She gently took my hand and put a warm loving
13 in the center of my palm. Then she quietly closed my hand, held it between hers and spoke words that I had
14to hear for so long. "Whenever you get afraid or sad, don't forget your mom loves you."
As the tears began to form in my eyes, I began to understand. I truly do have a
15 . No, she wasn't biological, but she was mine just the same.
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