单选题 ______ and lack of sleep, Charles and Mike finished all the work.
A. Being tired B. Tiring C. To tired D. Tired

【正确答案】 D

【答案解析】[解析] 该题考查过去分词作伴随状语。逗号前的半句是省略了的让步状语从句，主语为Charles and Mike，他们与tired是被动的关系。