Which sentence correctly uses the subjunctive mood? A. If I was you, I would apologize. B. If I were you, I would apologize. C. If I am you, I will apologize. D. If I have been you, I apologized. 答案解析 核心考点：虚拟语气中be动词的特殊形式。 解题思路：虚拟语气在非真实条件句中要求用were代替was（无论主语人称）。选项B正确。选项A使用was不符合规范。选项C/D时态和结构错误。 易错点：混淆真实条件句与虚拟语气的动词形式。 正确答案：B