【题目】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
在线课程【答案】C
【解析】试题分析：句意：每晚饭后，如果不是工作太累，我就会花些时间遛狗。句中if not tired from work是状语从句的省略。完整的句子是：if I am not tired from work，因为和主句的主语一致，所以省略从句的主语和be动词，用过去分词短语的形式。选C。