I found it hard to answer the question什么意思

the question is too hard to answer后力什么不加it? i found ,difficult to answer this question I think it--question-- C too hard a;to answer D a too hard; I find that it is easy to answer the question. In the end ,I found the answer _ the difficult question.A.to I found it impossible to answer such a question in class.帮忙划 I found it impossible to answer all the questions. 单项选择：Have you found the answer to the question ____ I asked the question is too hard .n（ ）can answer it.i waited for Bri The is very hard.I can't answer it.A.problem B.question C.ma I can't find the answer to the question.Think hard ,and you It's hard (answer)the question 适当形式