题目内容：

How long does it take to build a new house?It usually takes about six months or more．B1.each year，thousands of people work together to build new homes in just four months!Who does this w2.work？Habitat for Humanity．

Habitat for Humanity is a group that builds homes for families in n3.．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 f4.．Volunteers can be builders and painters．They can be teachers or Some are students．Habitat for Humanity has built more than 300，000 houses．More than l．5million people l5.in these houses．

Building a home is hard work．Volunteers learn h6.to put up walls．They use many m7.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 d8.come true．

Suruchi Srikanth has worked with Habitat for Humanity for four years．She b9.

volunteering in high school.She has built many homes with other volunteers．She takes her responsibilities(责任)seriously．Volunteers know i10.they don’t help，homes may not get built．They are good citizens who care about other people．