题目

Once upon a time, there was a swan(天鹅).She lived in a lake. A woman with her two daughters lived in a small house____the lake. They lived in a __ life. Sometimes they____money to buy food.The swan was______to see that. She______to help them. Every day she came to the woman's house and_____a golden feather(羽毛) without______anything. The woman sold the feather____bought food. She was happy because her life was____than before.___the woman became greedy(贪婪的). One day when the swan____, the woman caught her and took all her golden feathers. Suddenly the golden feathers____common feath4.上周末他们没有去爬山。They        to  the mountains last  weekend.