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。