问题补充：
--- I don’t think this TV set is of good quality. Can you replace it with a new one?
--- . But I have to talk to my manager first.
A. Out of the question
B. I’m sorry
C. Not at all
D. Without question
答案：
A. Out of the question
(答案→)B. I’m sorry
C. Not at all
D. Without question
解析：交际用语。 Out of the question意为不可能。 C 不用谢 D。毫无疑问。根据But可知，I不能给他换一个新的。所以选择B表示抱歉
