题目内容：

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

One of my most unforgettable experience occurred on a day last summer, 1. I was handing out newspapers from door to door.

Disappointed at my study results, I didn’t want to go to school any 2. (long). I found a temporary job during my summer vacation. Because I was poor in knowledge, the manager only asked me 3. (deliver) newspapers from house to house.

At 4. beginning, I it would be a piece of cake. There would be no 5. (difficult) in finishing it. But to my surprise, when I went to people’s 6. (house), they looked me up and down. I could feel that they looked down upon me. I 7. (hurt) badly. Even so, I came to another house. A black dog 8. (sudden) jumped out. Greatly frightened, I screamed with fear. But nobody came to help me. At that time, I come to realize that doing this job was more difficult than 9. (read) books in the classroom. I wanted to give up, but I couldn’t. I tried my best to do the job better. Finally I made it.

From this experience, I’ve learnt that if we put our heart 10. it, nothing is difficult and nothing is impossible.