根据各组对话内容，从下面方框中提供的5个选项中选出能填入空白处的最佳选项。
A. It was great. B. What"s the matter C. How about the green one
D. Are you free tomorrow E. Thanks, but I am full. A: Oh, David. Please don"t put anything on this desk!
B: ______
A: Look! This leg is broken.
【参考答案】
B[解析] 由答语“This leg is broken.”说明桌子腿坏了，故填“What"s the matter”最......