第15题: [填空题]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:Help yourself to some dumplings. B:______ 参考答案:E 答案解析:[解析] “Help yourself to some dumplings.”这是餐桌上的客套话,要客人随意多吃点水饺。“Thanks,but I am full.”表示了谢意并说已经饱了,符合情境。