阅读短文还原句子。 A. But I felt a little nervous. B.I fell down and hurt myself. C. We reached the playground on foot. D. Today I was a success ! E. Finallv I crossed the finishing line at 3'20'. It was a special day because I took the final PE Test for Junior Three students. The sun was shining brightly. 1_____ We stood in line in groups. Before the 800- meter race, we had a five-minute warm-up. 2____ In fact, I didn't do well in it. With the teacher's order, we began to run as fast as we could. Towards the end, I was so tired that I slowed down and several runners caught up with me. However, encouraged by my classmates, I kept running with every effort. 3____To my pleasure, this is the best result I have got in an 800-meter race. 4____ Not only I challenged the strength(挑战体能) that a runner needed but also I learned that trying my best would really make a difference.