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

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. to be tired

D. tired

答案：

A. being tired

B. tiring

C. to be tired

(答案→)D. tired

解析：考查状语从句的省略。当状语从句的主语与主句的主语一致，且状语从句中有系动词be的时候，可以把状语从句的主语和be动词一起省略。如果状语从句中有it is的时候，it is 也可以省略。本句在If not后面省略了I am；句意：每天晚上晚饭以后，如果不是工作很累，我都会去遛狗。故D正确。