A、  B、  C、  B题目是一个否定疑问句，若将其转换成一个一般的疑问句，便可轻松解题。问的是现在是不是应该去机场了，(B)回答说几分钟后就走，因此是正确答案。

Do you happen to know where Karen will be relocated?
(A) It’s perfectly located.
(B) She always knows the answer.
(C) I wish I knew.

Don’t we need to leave for the airport right now?
(A) At the port.
(B) Yes, in a few minutes.
(C) No, it’s on your left.