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 答案：C 解析: 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。

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