1. We cannot leave this tough job to a person ___.A. who no body has confidenceB. in whom nobody has confidenceC. for whom nobody has confidenceD. who everyone has confidenceof

本题考查定语从句中固定短语的介词搭配。关键点在于正确使用短语"have confidence in sb."，并注意关系代词与介词的组合。解题核心在于：

1. "in"必须与关系代词"whom"结合，构成"in whom"的结构；
2. 主句中"nobody"与从句的否定逻辑一致，需确保语义通顺。

选项分析

A. who nobody has confidence

• 错误原因：短语"have confidence in sb."中缺少介词in，导致语法结构不完整。
• 正确形式应为"in whom nobody has confidence"。

B. in whom nobody has confidence

• 正确选项：完整保留了短语"have confidence in"，介词in与关系代词whom搭配正确。
• 语义匹配：表示"没有人信任这个人"，与主句"不能将困难的工作交给某人"逻辑一致。

C. for whom nobody has confidence

• 错误原因：介词for与短语"have confidence in"的搭配矛盾，应使用in。

D. who everyone has confidence of

• 双重错误：
  1. 短语"have confidence in"误用为"confidence of"；
  2. 主句"nobody"与从句"everyone"矛盾，逻辑不通。