Directions: Now you will hear three news reports. At the end of each news report, you will bear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you are supposed to choose the best answer from the four choices marked A), B), C) and D).Questions 1 and 2 will be based on News Item 1.[音频]1

A. The category of small dogs.
B. The category of large dogs.
C. The category of tandem dogs.
D. The category of medium-sized dogs.