—I forgot my mother's birthday!
— Better keep it in mind next year.
A. I'm afraid so.
B. So what?
C. You did?
D. No wonder.
网友回答
A. I'm afraid so.
B. So what?
(答案→)C. You did?
D. No wonder.
解析：C 考察交际英语。句义：—我忘记妈妈的生日了！—你忘记了？最好明年记住吧！A恐怕如此；B那又怎么样？D不足为奇；C项中的did指代上文中的forot，意为你忘记了？表示惊讶。故C正确。