He can answer the question h _ hard it is.

He can answer the question h _ hard it is. He can answer the question ______(how) hard it is The question is easy.( )can answer it. The question is so _ _ that can not answer it the question is too hard .n（ ）can answer it.i waited for Bri The question is too hard.Not ______ can answer it.(nobody\ a The is very hard.I can't answer it.A.problem B.question C.ma he is so clever that he can answer the question the question is very e＿ .everyone can answer it The question is easy.I can answer it ______(easy) The question is easy.I can answer it同意句 The question is so difficult that nobody can answer it