题目内容：

One day, a lovely girl found two weak birds while she was walking in the woods. She took them home and put them in a small cage.    1.     .Every morning they greeted her with a beautiful song. The girl loved them very much and wanted their singing to last forever.

2.    .The larger and stronger of the two birds flew out of the cage. The girl watched worriedly as it circled high above her. She was afraid that it would fly away and she would never see it again. So when it flew close, she grasped(抓住)at it wildly. She was very happy that she held it tightly in her hand!     3.     .She opened her hand and was surprised to find the bird was dead.

She noticed the other bird jumping up and down in the cage. She could feel that it wanted to be free. It hoped to fly into the clear, blue sky. She lifted it from the cage and flew it into the air.

4.     ,she was so glad. She watched the bird circling once, twice, three times.....

5.    It sang the sweetest song she had ever heard.

The fastest way to lose love is to hold it tight. The best way to keep love is to let it fly.

A.When the bird was flying happily in the sky. B.One day the girl left the cage’s door open. C.She fed them with love and the birds grew strong. D.To her surprise, the bird flew back closer and sat softly on her shoulder. E.Her love for the bird killed it. F.Suddenly, she felt something happened to the bird.

从方框所给的选项中选出能填入空白处的最佳选项，补全短文。其中一项为多余选项。