this is so difficult a question that none of us can answer i

this is so difficult a question that none of us can answer i this question is so difficult that none of us can answer it The question is so difficult that nobody can answer it The question is so difficult that I can't answer it(改为同义句) the question is so difficult that I can't answer it.同义句 This exercise is difficult A so ,that few of us can do Btoo, This question is so difficult that I could ( ) do it. This exercise is so difficult that few of us can do it.为什么后面 this question is so difficult, nobady can answer it 的反义疑问句 The question is so difficult that no one can answer it.改为同义句 the question is so difficult that we can't answer it.(同义句) 求The question is so difficult that nobody can answer 的句型转换.