i found the question difficult____(anwser)

i found the question difficult____(anwser) The teacher asked( )students to anwser the question.A、more t i found that the question is difficult.that In the end ,I found the answer _ the difficult question.A.to after thinking about the question for a while,I found what I 单项选择：Have you found the answer to the question ____ I asked 21.I found the last question ____ .A.to be easy B.the easy C i found ,difficult to answer this question Read the passege and anwser the questions. I ask the question 改错：Have you found the answer of the question? 1._______we found out the answer to this question.