Every evening after dinner if not from work I will spend some time walking my dog.A. bei

问题补充：

Every evening after dinner, if not from work, I will spend some time walking my dog.

A. being tired

B. tiring

C. tired

D. to be tired

答案：

A. being tired

B. tiring

(答案→)C. tired

D. to be tired

解析：本题考查省略句式。在if引导的条件状语从句中，从句中还原应为if am not tired from work，根据省略的原则，所以答案选C。句意：每天晚饭后，如果不是很累，我会花一些时间遛狗。主句主语I与从句中的tire(使……劳累)为被动关系，所以要用过去分词，又因该句的动作经常发生，于是排除了选项A和选项D。