【题目】________ confidence resulted in his failure in the interview.
A.Lack of
B.Lack for
C.Lacking of
D.Being lacked

【答案】A
【解析】考查名词短语做主语。本题考查Lack of+名词作主语。Lack of缺少…句意：缺少信心导致了他面试失败。故选A。