——Thank you for joining in our conversation tonight.——_______.A.It's my dutyB.It's all rightC.It's my pleasureD.It's nice to say so
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C解析思路分析：对于别人的道谢，要用It's my pleasure或It's a pleasure (for me)来回答，意为“这是我的荣幸”。这是英语国家的交际习惯。
【点评】该题考查交际用语，难度偏低。解答此题时要特别注意西方的交际习惯。