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

问题补充：

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

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：考查从句的省略式，英语中如果主从句的主语一致，可以省略从句的主语和be动词，if not tired=if I am not tired，句意是：每天吃完饭，如果不是因为上班累了，我会花点时间遛狗。选C。