问题描述：
1.They think it too difficult a question to answer?
2.They think it such a difficult question to answer?
3.they think it so difficult a question to be answered?
三个哪个答案对理由是?
第一个不是TOO TO
2.They think it such a difficult question to answer?
3.they think it so difficult a question to be answered?
三个哪个答案对理由是?
第一个不是TOO TO
问题解答：
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