请用方框内单词或短语的恰当形式填空（有一项多余）

raise money     pull down   make… out of   somewhere   build   far away from in one’s spare time    provide… for    discover    disagree with   hear of

On a rainy day, Jack and Helen         some baby birds sitting on the fence not          their home. It seemed that the birds had         to go. Jack wanted to take them home and keep them as pets, but Helen         him. She wanted to help them find their mother. The children looked around and found that a big tree had been   by someone. Then they could do nothing but take the birds home.
Every day, Jack and Helen looked after the little birds         . They   food the birds. One day they saw that the birds looked upset. Their sad look urged Jack and Helen to help them find their home with a mother. Jack and Helen planned       a birdhouse near the place where those little birds were found. But they had no money. They thought of   to buy some woods so that they could        a birdhouse         the woods for the little birds.