A、Forgetful. B、Lazy. C、Careful. D、Serious. C听懂本文的第一句话很重要，因为它是主题句，其后句子是对它的支撑句。主题句意为：有些人喜欢一切事都井然有序，而Mr. Brown就是这样的一个人。因此他是一个很认真、仔细

Some people don’t like any thing to be out of place. They are never late for work; they return their books to the library on time; they remember people’s birthdays and they pay their bills as soon as they arrive. Mr. Brown is such a person. Mr. Brown works in a bank, and lives on his own. His sister lives in the next town with her husband, and her son, Mark. Mr. Brown doesn’t see his sister or her family from one year to the next, but he sends them Christmas cards, and he hasn’t forgotten one of Mark’s seventeen birthdays.
    Last week Mr. Brown had quite a surprise. He drove home from the bank at the usual time; driving neither too slowly nor too fast, he parked his car where he always parked it, out of the way of other cars, and he went inside to make his evening meal. Just then there was a knock at the door. When he opened it, he found a policeman standing there. Mr. Brown asked himself.  "Have I driven on the wrong side of tile road? Has there been some trouble at the bank? Have I forgotten to pay an important bill?"
    "Hello, uncle," said the policeman, "My name’s Mark."