单选题 11.She would have been more agreeable if she had changed a little bit,______?

【正确答案】 C

【答案解析】本句用了虚拟语气。主句中的would have done表示“本来将要发生某事，实际上并未发生”，反意疑问句的附加分句要与主句一致。所以，答案为C。