This question is hard to _ a.be answered b.answer

This question is hard to _ a.be answered b.answer the question is hard to answer为什么不是to be answered the question is eas to answer.为什么不同to be answered? This is a hard question to answer.这个不定式为什么用主动式 ______ hard for me to answer that question.A.That's B.This i 英语This question is easy ________.A.to answer for B.to answer Are you _ the answer to the question?A.sure B.sure to be C.s this question is too hard [ ]---answer The question asked by him is hard to be answered 为什么不对? This question is hard to ( ) This question is（ ）for him to answer A: easy enough B: easil 英语时态问题I think this question ________ to answer.A.easy B.is e