听下面一 段材料 , 回答第1-3题。 1. What can we learn from the conversation? A. The bill is not clear enough. B. The bill is sent to a wrong address. C. Incorrect bills are sent to the woman. 2. Why does the same kind of mistakes occur? A. The man is not careful enough. B. The new computer is not working properly. C. The clerks do not know how to use the new computer- 3.What does the man agree to do? A. Get a better computer. B. Pay the woman extra money. C. Send correct bills to the woman later.