— I’m terribly sorry to keep you waiting for so long． — ．A. Never mind．B. That’s right．C.

问题补充：

— I’m terribly sorry to keep you waiting for so long．

— ．

A. Never mind．

B. That’s right．

C. You are welcome．

D. Don’t mention it．

答案：

(答案→)A. Never mind．

B. That’s right．

C. You are welcome．

D. Don’t mention it．

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