题目内容：

阅读下列材料，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 recent Friday night, I called my 27-year-old son, Ryan, who was making his way to a company in Manhattan. He said he would call me back shortly. Strangely he did not. The following morning, I called but got no response. So worried was I that I called him again and again. Later, he texted me from his iPad, telling me about the loss of his cell-phone due 1. his carelessness. He was very upset and anxious because there were many memorable photos and texts stored in it. I asked him where it was 2. he had left his cellphone. He said he couldn’t remember it and that if he had lost the phone, he had to buy a new one to take the place of the former one.

3. (lose) his cellphone by then, he had to ask a co-worker to call the cellphone, and by coincidence a cabdriver answered . The driver said 4. (actual) he had found it and he would gladly return the phone and he gave his cellphone number to the co-worker. I called the driver, who said he could meet my son in the city that night even 5. he was quite busy. After several back-and-forth communications about where and when they should meet, it 6. (propose) by the driver that they should meet each other in Manhattan. Having got his phone back eventually, my son felt happy and relieved.

Then I got a text from the driver, which said “I gave the phone to your son.” I expressed my sincere 7. (appreciate) to him and wrote, “God bless you.” I asked him for his address. I am in the baking business and wanted to give him a gift. “Thank you so much,” he wrote. “I am really grateful to God for 8. (give) the opportunity to do something good for your family.” I responded, “Again, thank you for being such a good person. I wish more people in this world were more like you. 9. I be a cabdriver in the future, I would do the same thing as you did.” This was just a cellphone, but I felt emotional about it. 10. (moment) like these restore your belief in humanity (人性).