阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的内容（不多于3个单词）或者用括号中词语的正确形式填空。
Two things I did may have caused people       (think) that something is wrong with me. The first was when my wife asked me to have the sitting room clock        (repair). I drove into the market place of our little town and, clock under arm, entered a shop. Only it was the meat shop,        my thoughts far away, I stood staring into the shopkeeper's eyes. I     (be) his customer for a long time and the good man smiled at me.
This went on for several very long seconds before I realized where I was. There is no doubt that I should have calmly bought a pound of meat,     I merely nodded briefly and left.
The other man in my town who probably thinks I am mad is Mr. Smith. Some years ago he was manager of Mead's Shop, and he and I knew each other quite well. One day he        (stand) in the doorway of his shop when I passed.My brain was on some distant problem and my eyes stared into space.
“Hello, Mr. Herriot.” I heard his voice. I turned a blank gaze on him — I just had no idea      he was though his face was familiar. Then I saw __     word “MEAD” in foothigh letters above the shop window.
“Good morning, Mead，” I cried heartily and continued my way. I had gone only a few steps before I realized that my greeting had been   (polite). I turned back and said to him again, “Good morning, Mister Mead.”
It was only when I has turned the corner of the street that I realized, too late,       his name was Tony and the time was late afternoon.