单选题
Countless divorced politicians would have been elected out of office years ago had they even thought of a divorce, let alone ______ one.
【正确答案】
C
【答案解析】[试题分析] 本题考查短语let alone的用法。
[详细解答] 本题中有一短语let alone，意为“更不用说”，它要求其前后接语法功能相同的词语，从而构成平衡结构。本句中前面有过去分词thought，那么此空就应选gotten与之对应。