—Did you spend a lot of time looking for the missing child?—. It took us a long time but

问题补充：

—Did you spend a lot of time looking for the missing child?

—. It took us a long time, but luckily we found him.

A. My pleasure

B. Absolutely

C. Not at all

D. Don’t mention it

答案：

A. My pleasure

(答案→)B. Absolutely

C. Not at all

D. Don’t mention it

解析：考察交际用语。A不用谢；B当然，绝对地；C一点也不；D不用谢；句意：—你花了很多时间寻找那个失踪的孩子吗？—当然，花了我们很多时间，但是幸运地是我们找到了他。根据句意说明B正确。

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