45.A. Than            B. When            C. Then            D. After

                                          A

     Long ago, there lived a learned man in Greece. He was well-known for his wide knowledge. And lots of people from all over the country came to learn things from him. The great man taught his students with all his heart and answered their questions with great patience.

     One day a student asked him, "My dear teacher, didn't you say you have many more questions than we do? But we think we students have a lot more than you." With a smile, the teacher drew two circles ―one is as large as a big plate, and the other is smaller.

     "Of course, I've learned much more. But I don't think I know all you know. Now, look at these two circles: Inside the big one is my knowledge of things, and inside the smaller one is yours. Out of the circles is what we don't know. My circle is large, so its line is longer. That means I have more opportunities (机会) to meet with what we don't know. And that's why I myself have more questions than you do. The more you learn, the more questions you'll have. You will never learn enough, you know."

44. A. make             B. take        C. see         D. find