C．set up D．clean up

B解析：由下文的return home可知，蝙蝠设法“逃离(escape from)”了笼子。

20．A.ashamed B．excited

C．pleased D．worried

A解析：由下文的he didn’t tell anyone what had happened可知，蝙蝠对它的经历感到很“羞愧(ashamed)”。

Ⅳ短文改错

When I began my senior high school years, I had difficulty to learning English. I dared not speak English in the public because of my poor pronounce. I could not get high marks, but I always used bad grammar. Afraid of be laughed at, I never put up my hand answer questions in class. When my English teacher Miss Li learned about this, she encouraged me and lend me a hand, that helped improve my English. With her help, I became interest in English and finally got high marks. Miss Li, like a shining star, shines on her path to success.

答案：

When I began my senior high school years, I had difficulty to

in/

to learning English. I dared not speak

English in the public because of my poor

pronounce

pronunciation. I could not get high marks,

but

and I always used

bad grammar. Afraid of

be

being laughed at, I never put up my hand

∧

to answer questions in class. When

my English teacher Miss Li learned about this, she encouraged me and lend

lent me a hand,

that

which helped

improve my English. With her help, I became

interest

interested in English and finally got high marks. Miss Li,

like a shining star, shines on her

my path to success.

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