英语 情景题 标准

虚拟语气与情态动词 — 英语情景题

大学英语四级(CET-4) 核心词汇与语法 AI 三重审校通过

题目
During a late-night study session in the library, Alex noticed his roommate Sam was struggling with a complex calculus problem. Alex thought to himself, 'I wish I ______ him earlier when he looked confused.' Which option correctly completes the sentence?