I will never forget an accident that happened in my own childhood. When I was a boy of twelve ,something happened to me that made me never____1____any birds in a cage.

     We lived on the edge of a___2___in South Carolina, and every evening many mockingbirds would come and rest in the trees and sing. There isn’t any sound that can be___3__   than the song of the mockingbird.

     I decided to catch a young bird and keep it in a cage,___4__in that way, I could have my own musician. I finally caught one and put it in a cage. The bird was__5___and fluttered about the cage ,but finally it became quiet in its new home. I felt pleased with__6__ and looked after my little musician carefully.

     On the second day, the bird' s mother flew to the cage___7___food in her mouth. The baby bird ate up__28__she brought .I was pleased to see this. Certainly his mother knew better than I how to feed her baby.

     The following morning when I went to see___9___my little bird was, I found it on the floor of the cage , dead. I was very surprised! What had happened! I had taken great__10__of the little bird, or so I thought.

     Arthur Wayne, a famous scientist, happened to be in the forest where we lived at the time. Hearing me crying over the__11__of my bird, he told me what__12__. "A mother mockingbird, finding her young in a cage, will sometimes bring it poison(毒药) food. She thinks___13___better for her young to die than to live in a cage."___14___I have never caught any birds or put them in a cage. All the birds have the fight to___15___in the sky .

(    )1.A. put            B. cut              C. draw             D. pull

(    )2.A. river           B. forest            C. city              D. sea

(    )3.A. more beautiful   B. less terrible       C. worse             D. noisier

(    )4.A. but            B. or               C. and              D. though

(    )5.A. lucky          B. silent            C. kind             D. frightened

(    )6.A. yourself        B. myself           C. herself           D. himself

(    )7.A. without         B. around          C. in               D. with

(    )8.A. someone        B. nothing          C. everything        D. anyone

(    )9.A. how            B. what            C. which            D. whether

(    )10.A. place           B. rest             C. picture           D. care

(    )11.A. death           B. cage             C. food            D. health

(    )12.A. could happen     B. would happen     C. had happened     D. has happened

(    )13.A. one             B. it               C. that             D. this

(    )14. A. Soon after       B. Since then        C. Just then         D. Long ago

(    )15.A. jump            B. run             C. fly              D. walk