1. He works _______________（在倒数第二个办公室）.
　　2. The beauty of the lake is _______________（难以用语言形容）.
　　3. ________________（一个人如果关在家里）,a person can't know much about the world.
　　4. _______________（完成作业后）,they went to the library.
　　5. I found him ________________（被打得青一块紫一块）.

　　答案与解析：
　　1. in the last office but one
　　2. beyond description
　　3. Kept within houses
　　4. Having finished their homework
　　5. beaten black and blue