根据n多题专家分析，试题“You were out enjoying yourself when you ________. A．must have studiedB．would have studiedC．should be studyingD．ought to have been studying…”主要考查了你对 【虚拟语气】，【情态动词】 等知识点的理解和应用能力。关于这些知识点的“档案”，你可以点击相应的链接进行查看和学习。
◎ 相似题
与“You were out enjoying yourself when you ________. A．must have studiedB．would have studiedC．should be studyingD．ought to have been studying”考查相似的试题有：
