问题
选择题
—Was it by cutting down staff are not diligent enough she saved the firm?
—No, it was by improving work efficiency．
A．that; when
B．that; what
C．who; how
D．who; that
答案
答案：D
题目分析：考查复杂句：第一空填who，引导定语从句，先行词是staff，定语从句中缺少主语，用who引导定语从句，第二空填that，是强调句，强调的是by cutting down staff，句意：是通过
点评：做复杂句要会分析成分：.试试去掉it was 和空格中要填的字,变成she saved the firm by cutting down staff. 这是完整的句子,是说的通的故是强调句。.