问题
选择题
Mr. Smith was so angry at all ______ Bill was doing ______ he left.
A．that; what
B．that; that
C．which; which
D．what; that
答案
答案：B
本题考查句子结构辨别的能力。第一空: 先行词为all, 由 that 引导定语从句; 第二空:that 与前半句中的so 呼应, 引导结果状语从句。