10 . Luis Ortiz loves to build houses. All the houses he builds have one thing in________: each little house is a piggy bank that Luis________to raise money for Habitat for Humanity. Habitat for Humanity is a charitable organization that builds and repairs houses all over the world for free.

For many years, Luis and his mom shared a bedroom in a tiny apartment, but Luis wished for his own bedroom. His mom was________ to buy a house,________it would have taken years before she had enough money. She asked Habitat for Humanity if they would help her build a house.

“A dream came true.” Luis said, “That first night, I felt very delighted in my own home. I wanted other kids to have a(n)________like mine.” Luis decided to raise________to donate to Habitat for Humanity. Luis began by selling some of his toys. He made $57 that day and________it to Habitat for Humanity. Then he had a(n)________. Luis turned a shoebox into a piggy-bank house, and painted the little home in bright colors. It reminded Luis of how________he was to have his own home. Whenever they could________it, Luis and his mom put a little money in the house-bank. Luis thought maybe other kids would also like to build piggy-bank houses and save money to make a contribution to Habitat for Humanity. He________house -shaped bank kits (配套元件) that kids could book and build themselves.

Kids________the banks. They bought, built and filled them with________. The money made from the________of the banks, as well as the money inside the banks, went to Habitat for Humanity.

Since 2008, more than 1,000 house-banks have been________from the “Luis House-Bank Project”, which has raised more than $15,000.