一、阅读理解（每题4分，共60分）
（A）
My friend, Dick, has a large police dog. Its name is Jack. Every Saturday afternoon Dick takes Jack for a long walk in the park. Jack likes these long walks very much.
One Saturday afternoon, a young man came to visit my friend. He stayed a long time. He talked and talked. Soon it was time for my friend to take Jack for a walk. But the man was still there. Jack became very worried. He walked around the room several times and then sat down in front
