—Thank you for joining in our conversation tonight. —-- .A. It’s my dutyB. It’s all rightC

问题补充：

—Thank you for joining in our conversation tonight. —-- .

A. It’s my duty

B. It’s all right

C. It’s my pleasure

D. With pleasure

答案：

A. It’s my duty

B. It’s all right

(答案→)C. It’s my pleasure

D. With pleasure

解析：考查交际用语：A. It’s my duty这是我的职责，B. It’s all right行，C. It’s my pleasure不用谢， D. With pleasure很乐意，因为第一句话里面有Thank you，所以选C。