题目

Mr Smith,       of the      speech, started to read a novel. A. tired; boring     B. tiring; bored C. tired; bored      D. tiring; boring 答案：A 解析: tired of…是过去分词短语作状语，boring 是现在分词作定语。7．某几何体的三视图如图所示，则该几何体的体积为（　　）A．$\frac{1}{6}$B．$\frac{1}{2}$C．$\frac{2}{3}$D．$\frac{1}{3}$