Do you know wheather_____paint very well?A.the poainter B.can the painterC.the paiter be able toD.could the painter选那个?为什麼?.还有解释下这里用了什麼语法.还有这个句子问什麼的?

If I am loving somebody but I do not know wheather he is loving me What should I do? I leave___ to your own judgement whether you should do it.填空位置用it还是that?---I don't know wheather I shoud go aboard or not,Mum.--- I leave___ to your own judgement whether you should do it.这一题的填空位置用 it 还是用 that? what do you know Do you know what Do you know Facebook? do you know my how do you know Do you know Do you know? do you know 亲,Do you know? Do you know what? do you know there? do you know sex How do you know? Do you know? do you know these Do you know