题目内容：

阅读下面短文，在空白处填入1个恰当的单词或括号内单词的正确形式。

It was a sunny day, and I got a call. A man 1. (represent) the Sunergy Solar company called me to ask if I was interested in Solar Installation. I told the man I was but I couldn't afford it. However, two days later, a man came to my door, 2. was nice, experienced, and gave me all the information. Unfortunately, I wasn't able to pay for the solar panels（太阳能板）, so I kindly refused and 3. (explain) my story to him. I lived in a world where I couldn't afford 4. (pay) for electricity and I couldn't get it 5. free. Moving forward, I got a call again, and this time it was 6. owner of Sunergy Solar. As a company they wanted to help me by 7. (give) me a system for free. The owner said he wanted to pay it forward. I 8. (have) the panels now for a month and I couldn't be 9. (happy). Yes, get free electricity from the sun. But, I couldn't believe that generous, thoughtful people still exist in the world. I want to thank Sunergy Solar for their generosity. I 10. (true) couldn't stop crying, but this time from happiness.