语法填空

    When learning to drive, we're told to obey the traffic rules and not to drive our vehicles too fast. ____ surprises us is that some young people just enjoy the feeling of driving cars or motorcycles at a very high speed. Jack, ____ 18-year-old boy, is no exception.

    Recently, Jack's father has bought ____ a car, which is quite admired by his friends. When he is out in the country, where there are a few people ____ (drive) and the traffic rules are not strict, this ____ (adventure) boy will drive at a top speed. In towns, however, there is a speed limit, that is, fifty kilometers an hour, but Jack often drives much ____ (fast).

    One day Jack was driving through towns ____ a young policeman, who was new to his work, ____ (stop) him and said, “I'm afraid you were driving at a more than fifty kilometers an hour, Sir. Please give me your name and address. ” ____ (look) at the policeman carefully, Jack said to him, “Well, Sir, I started my journey less than an hour ago.” On hearing this, he didn't know the answer____ Jack's excuse. He thought for a few seconds and then let Jack go.