五、閱讀測驗：       Dogs have helped farmers herd sheep for hundreds of years. Today, herding sheep hasbecome a sport. Dogs around the world compete in trials. Sheepdog owners havecommands for telling their dogs what to do. “Come-bye” and “away to me” mean circlingthe sheep right or left. “Look back” means turning around and getting sheep that havegotten away. The biggest sheep herding event is the World Trial, which is held once everythree years. In this competition, dogs must herd a flock of sheep around an obstacle course.They must also complete a number of tasks, like bringing sheep to their owner or separatingthem into groups. Sheepdog trials may look like a ballet. On the other hand, if a youngdog gets too excited, the sheep herding can be a wild goose chase.
【題組】39. What is true about sheep herding?
(A) It has been around for a long time.
(B) It used to be a sport hundreds of years ago.
(C) Dogs can do it without humans.
(D) Humans usually don’t use dogs.