阅读下面短文，故答案选择最佳的答案。

    On a winter morning, I 1shopping and bought a pair of shoes for myself. I put the shoes in the living room after I got home. Then I went to2house to do my homework with her.

    However,3I came back home, I couldn't find the 4in the living room. Just then, my mother came in. She looked very 5. And she was wearing the new shoes." Oh! My dear daughter! Thanks for 6me such a great present. You gave me a great 7. This is the best gift I have ever received," my mother said to me 8.

    Suddenly, I 9that day was my mother's birthday." Just now I showed your present to some of my friends. They all said you were a great daughter!" I was ashamed (羞愧的)to hear that.

    This is 10special present I have given to my mother.