whether he is right 之后要加 "or not"吗?

whether he is right 之后要加 or not吗? He was not sure whether it is right or wrong.是什么从句? no one knows （ ）what he said is right or not.A that B if C whether I don't think ___ he said something like that is right. 选择题?I don't think ___ he said something like that is right.A:that B:what C:whether D:when答案是A 为什么? 怎么翻译? 英语句子：regardless of whether he is right or wrong, we have to abide by his decisions.在这个句子中,regardless of是连词还是介词? is your father?He is all right. if he was not sure whether he was going in the right direction什么意思 He is busy right now.后面right now怎么解释? He is busy right now.后面right now怎么解释? Not all he said is right. He always stands for what is right He is having breakfast right now.(already) i donot think he who is right He is having breakfast right now(already) Everyone think he is right.改错 He rather than I is right. he is always __(confidence)that he is right The patient was not ____ whether he was all right.填什么