阅读短文，掌握大意，然后从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

    Last summer, my family and I went to England and we 1 two weeks in Cornwall. It 2 us five hours to get there by car. We stayed in a hotel near a lake. We did a lot of different   3  there: we went for long walks, played games, went shopping and swam in the lake.

    I played happily at first, but then  4 terrible happened. One morning I went to the  5  near the hotel by 6  . I walked and walked, watched the  7  singing in the trees and took some photos of them. When I got 8 , I wanted to go back to the hotel  9  food. But I couldn't find the way back. I  10  different ways. However, at last I was still in the 11 place.

    "Oh, God! What should I do? I'm so afraid!" I thought. Later it started to rain. I didn't have a(n) 12 so I was wet and cold.

    I  13  to stay under a tree and waited for my parents. After  14  hours they found me. It was dark and I was cold, hungry and scared. I will  15  go to the forest again.

歌德说：“你若要实现你自己的价值，你就要给社会创造价值。”这句话是说（    ）