单选题 —Did you hear the phone ring last night?
—I didn"t hear anything. I was ______ that I didn"t wake up.

【正确答案】 C

【答案解析】[解析] 考查语法结构。so/such...that常引导结果状语从句。so修饰形容词、副词，such修饰中心词是名词的词组，故选so tired。