为什么主句为I didn’t think ,丛句为he could have done的反意疑问句的疑问要用did he

为什么主句为I didn’t think ,丛句为he could have done的反意疑问句的疑问要用did he He didn't think he could pass the exam.反意疑问句是did he?还是didn't I think he became proud.的反意疑问句是don't he 还是didn't he? I didn't think that he was a student ,___ ____?的反意疑问句 一个关于反义疑问句的问题,I don't think he could have done such a stupid 关于反义疑问句的1.I don't think he could have done such a stupid thi 反义疑问句I don't think he could have done such a stupid thing la I don't think he did such a bad thing ______(反意疑问句),为什么答案是di 宾语从句的反义疑问句 若为he didn't think she is a boy 后面用什么 He had done的反义疑问句是hadn't he?还是didn't he? I don't think he did well in the exam.这里的don't 要改成didn't i don't think he could have done better than that,()?A.do i