单项选择题

A Hidden passengers traveling in ships, trains, or even cars can be a terrible trouble—especially when they are insects. As for this, there is a great21between human beings and insects. The former 22every possible effort to avoid being discovered, while the latter quickly draw attention to themselves. We can only show mercy to the unfortunate man who had to stop his car soon after23from a country village to drive to London. Hearing a strange noise from the24of the car he naturally got out to25the wheels carefully, but he found nothing wrong, so he continued his way. Again the noise began immediately. Quickly26his head, the man saw what appeared to be a great number of bees following the car. When he stopped at a village further on, he was told that a queen bee must be hidden in his car as there were thousands of bees27. The man drove away as quickly as possible and arrived safely in London. Suddenly he saw his car was28with bees. The poor driver was29that the best way should be call a30. In a short time the man arrived. He found the unwelcome passenger hidden near the wheels at the back of the car. The beekeeper took the queen and her thousands of followers home.