试题题干
(care) He said that it was 
that led him to make the silly mistake.
参考答案
试题解析
本题可从词形变化和句意入手。
it was ... that ...这是强调句型。was后需填入名词作主语。但是根据第二个that后的句意可知，导致他犯了愚蠢的错误。空格处应该是负面意义的名词。
所以变care为其反义词的名词形式，变为carelessness。
句意：他说是粗心导致他犯了这个愚蠢的错误。
(care) He said that it was that led him to make the silly mistake.
本题可从词形变化和句意入手。
it was ... that ...这是强调句型。was后需填入名词作主语。但是根据第二个that后的句意可知，导致他犯了愚蠢的错误。空格处应该是负面意义的名词。
所以变care为其反义词的名词形式，变为carelessness。
句意：他说是粗心导致他犯了这个愚蠢的错误。