I am not sure( )he will come or not空格中填whether 还是if?

I am not sure是什么意思 Er...i am not sure. I am not sure( )he will come or not空格中填whether 还是if? I'm sure I am not wrong “You will soon learn English he said .I wonder .I am not sure .麻烦帮忙翻译 i am not sure反义疑问句 I am not sure what your talking 翻译成中文：I am not sure i am not sure 什么意思 I am not sure同义句 maybe.but I am not sure. Sure.I am not a bad I AM NOT SURE YET?什么意思? i am not sure.where did he go?合为一句 i am not sure—— —— —— I am not sure wether he will come back soon?whether引导的是什么从句? I am sure he _____(not play )computer games any more. Will he fly a kite tomorrow I am not sure .改为含有宾语从句的复合句 Will he fly a kite tomorrow I am not sure.改为含有宾语从句的复合句