（三）
For years I went to school by bus, so I met many "familiar" strangers. We took the same bus but didn't know each other's 1. n___. I thought we couldn't be true friends. How wrong I was! Smiles from the "nameless" people changed my thoughts.
The first time on the bus, I saw different faces. As days went on, we 2. c___ like old friends.
But it seemed not easy to set up friendship with a 3. q___ girl in the front of the bus. Her old clothes showed me that she didn't have much 4. m___. But she always took a bottle of water for the driver. I guessed she was a 5. k___ girl. But why did she sit quietly without talking with us? Why did she never 6. r___ to friendly greetings? Couldn't she smile?
Then, one evening, I got the answer. I walked to the park nearby and saw the girl sitting
7. a___ under a tree, lonely and sad. I greeted her with the same warm smile, but this time
her face turned red, and then she gave me a shy smile. When she began her first words, I knew
8. w___ she didn't speak to us before. Talking was difficult for her.
She 9. t___ me her story: Her parents had to work hard in another city because they were poor. She lived with her grandparents. She said, “I can't express myself well. Most of the time, I can't say what I want to say. I have no friends, but you always smile at me like an angel, so I also want to smile.” That evening, we told our names to each other and said goodbye like old 10. f___.

1. names 2. chatted 3. quiet 4. money 5. kind
6. reply 7. alone 8. why 9. told 10. friends

（四）
How long does it take to 1. b___ a new house? It usually takes several months. But each year, thousands of people work together to build new homes voluntarily(自愿地)! Who does this 2. w___ work? Habitat for Humanity.
Habitat for Humanity is a group that builds homes for families in 3. n___. It has branches（分部）in different states around the United States.
This group works all over the world too. 4. V___ help build the homes. They are unpaid workers who do all the work for free. Volunteers can be builders and 5. p___. They can also be teachers or bankers. Some are students. Habitat for Humanity has built more than 300,000 houses by the end of 2008. More than 6. m___ of people live in these houses.
Building a home is hard work. Volunteers learn how to put up walls. They use many 7. m___ and tools. These selfless(无私的) volunteers work with the family that will live in the house. Everyone works together to make the family's 8. d___ come true.
Suruchi Srikanth has worked with Habitat for Humanity for four years. She 9. b___ volunteering in high school. She has built many homes with other volunteers. She takes her responsibilities(责任) seriously. Volunteers know 10. i___ they don't help, homes may not get built. They are good citizens who care about other people.

1. build 2. wonderful 3. need 4. Volunteers
5. painters 6. millions 7. materials 8. dream(s)
9. began 10. if