I am not sure if she is from Canada.还是I am not sure that she

I am not sure if she is from Canada.还是I am not sure that she I am not sure who that book belongs to还是I am not sure whom t Is she from Canada?I'm not sure.合并为一句 I am not sure whether she is right or not对的吧 is that the ( ) spelling?i am not sure .look it I am not sure.that I am gay Er...i am not sure. I am not sure是什么意思 I AM NOT SURE YET? i am sure she is not the right person of the photoes--如何翻译? she is ___like one of my old friends ,i am not sure of it A Where is Lucy I am not sure.she( ) in the classroom.Amaybe B