I do not know if it is polite or not to speak loudy at table.句中的or not可以放在whether 之后或句末

i don't know i can do it if not now选择AwhereB.whyC.whenD.how I really like you do not know if you feel it? I do not know if his uncle ( ).I think he ( )if it does not rain.If she isn't free tomorrow ,she ( )(not take) part in the party. if you i do not believe it There are moments when I do not know if it is real Or if anybody feels the way I feel I need inspiration Not just another negotiation下一句 I don't know whether it will rain or not,but if it____(do),I shall stay at home. If I do not know how good that the翻译 i do not know if there is a need or I do not know I do not know I want to know if it ____(not rain) tomorrow I do not know if this is a wrong beginning,will it last longer?My heart is so painful是什么意思. I do not know if it is polite or not to speak loudy at table.句中的or not可以放在whether 之后或句末 you know.I need you If you do not leave,I do not discard.Do not leave I do not know how it ___.（使用） I ______(not tell)about it,so I do not know about it. Tonight if I die,I do not regret Tonight if I die,I do not regret it意思是什么? i do not know if you _____.if you ____,please call me tonight(come)