I couldn't believe what I saw.反意疑问句应是could I 还是did I 为什么?还有,

I couldn't believe what I saw.反意疑问句应是could I 还是did I 为什么?还有, I'm here的反意疑问句是什么,是amn't I还是aren't I ______ I saw him again after 5 years,I couldn't believe my e I don't think he did such a bad thing ______(反意疑问句),为什么答案是di 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 I couldn't believe that------ ------ ------ -------(是你)left Tom and Jack?I did't believe they could do the work.是选C么? I ALMOST COULDN'T 还是I COULDN'T ALMOST? I don't believe you did.在这里did是助动词（表强调）还是动词? I don't believe she will come here tomorrow,【】【】?反意疑问句 I don′t believe that she can do that job.改为反意疑问句 I couldn't agree more your opinion还是i could't agree more wit