阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项。

    Six months ago I made a rash (轻率的) promise. The leader of the youth 1in our village rang me in March saying, “We are thinking of running a children's play program for a 2 in October half-term. Would you be prepared to 3?” My response was, “sure, why not?”4I was a little flattered(荣幸的) to be asked, even though working as a care assistant with old people hardly 5me for the role. Still, I put the date in my diary. Time flew and 6I knew it, the day finally came.

    I arrived at the youth centre that morning feeling full of 7. There were 12 helpers including me and each pair had been allocated (分配) a particular 8 group. Mine was the 10 to 11 year olds.

    All too quickly the children began 9. A handful of them were already members of the club but the other forty-five were from the local primary schools. 10 I asked myself why I had decided to spend a day with all these “little monsters”11 when I had two of my own! I needn't have 12 of course as it turned out to be a 13day. We learned “action” songs, decorated biscuits and played memory games. I say “we” because I rediscovered my inner 14 and joined in all the activities.

    The most 15 was the final performance of “He's got the whole world in his hands” in the 16 part of the day. The children knew the words and actions off by heart and sang so 17 that it was almost enough to bring the roof down. It made you 18 to witness something so magical.

    There was one 19 for the children and that was that the play program was only running for a day, and not the whole week. As they said goodbye to me, one of the children 20and said “Can we do it again in the next holiday, Miss?” My response was, “Sure, why not?”