Which sentence correctly uses the subjunctive mood? A. The regulator insists that lawyers avoid conflicts of interest. B. The proposal recommends that non-lawyers are allowed to invest. C. It's crucial that legal ethics remains the top priority. D. They suggested the rule should be abolished immediately. 答案解析 核心考点：虚拟语气。解题思路：动词recommend后的宾语从句需用"should + 动词原形"。正确选项B使用"be allowed"符合要求，错误选项A/C使用陈述语气，D未用原型动词。易错点：忽略表示建议的动词后的虚拟语气结构。 正确答案：B