阅读下列短文，根据短文内容填空，在未给提示词的空白处仅填写1个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。

Once upon a time, in a small town lived a man who couldn't see. Yet, he carried a lighted lamp with him whenever he went at night. One night, he came 【小题1】 a group of travelers. One of them asked him, “Hey, man! You can't see anything! Why do you carry a lighted lamp then?” The blind man replied, “Yes, 【小题2】 (unfortunate), I am blind but the lighted lamp I am carrying is for people like you who can see. You may not see me coming and end up knocking into me. That is 【小题3】 I carry a lighted lamp.”