首字母填空How long does it take to build a new house? It usually

How long does it take to build a new house? It usually takes about six months or more. B__1____ each year, thousands of people work together to build new homes in just four months! Who does this w___2___ work? Habit for Humanity.
Habitat for Humanity is a group that builds homes for families in n__3___ . It has branches(分部) in different states around the country.
This group works all over the world, too. Volunteers help build the homes. They are unpaid workers who do all the work for f__4___. Volunteers can be builders and painters. They can be teachers or bankers. Some are students. Habitat for Humanity has built more than 300,000 houses. More than 1.5 million people l___5___ in these houses.
Building a home is a hard work. Volunteers learn h___6___ to put up walls. They use many m__7____ and tools. These selfless(无私的) volunteers work with the fammily taht will live in the house. Everyone works together to make the family's d__8____ come true.
Suruchi Srikanth has worked with Habitat for Humanity for four years. She b__9____ volunteering in high school. She has built many homes with other volunteers. She takes her resposibilities(责任) seriously. Volunteers know i__10____ they don't help, homes may not get built. They are good citizens who care about other people.  

答案：
1. But
2. wonderful        
3. need
4. free
5. live
6. how         
7. materials        
8. dream         
9. began
10. if