I don’t doubt ____ it is true.

I don’t doubt ____ it is true. I doubt if it`s true I don't doubt he said is ture选择哪一个 i don't doubt that he is lying I don't care if you think it is true or not,this little boy It is true 空格 I don't like to go hiking alone I don't know whether it is true 【or not】.加不加 or not 有什么区别? I believe isn't true和I don't believe it's true有什么区别 I doubt that I don't doubt whether 怎么回答I don't believe that is true I don't doubt ____ our team win the football match.We are th I don't doubt ________ he