题目内容：

阅读下面短文，在空格处填入适当的词（1个词）或使用括号中词语的正确形式填空。

I’ve dreamed of becoming a writer since I was a teenager. But1.   isn’t easy to get a book of mine published.   2.  I’ve tried hard, none of my books have been published. This is really  3.   (upset).

This morning, I received a call from a publisher and 4.   (tell) once again that there was no way my book would be published. 5.  (feel) sad, I left home and went to the park near my apartment. At the park, I sat down on the bench near the grass.

While I was sitting there, I saw a little boy about one and a half years old. He was running on the grass, 6.   his mother not far behind him. He looked so happy when he enjoyed the   7.  (free) of running on the grass. He then fell on the grass, but he quickly got up and continued 8. (run) as fast as he could again even without looking back at his mother. He was still running with a smile on his face, as if nothing   9.  (happen).

Seeing that, I was truly inspired. I 10.   (sudden) realized that I shouldn’t get discouraged after experiencing failure. Instead, I should cheer up and keep on trying.