问题补充：
---I’m terribly sorry for having hurt your dog.
--- You didn’t mean it.
A. Don’t mention it .
B. You are welcome.
C. Just forget it.
D. You should have been more careful.
答案：
A. Don’t mention it .
B. You are welcome.
(答案→)C. Just forget it.
D. You should have been more careful.
解析：考查交际用语：A. Don’t mention it 不用谢B. You are welcome.不用谢，C. Just forget it.忘了吧，没关系，D. You should have been more careful.你应该更小心。句意：--很抱歉伤了你的狗。--没关系，忘了吧。选C。
