A、  B、  C、  C(A)cards和cars的发音相似，易造成误导。(B)虽然首先回答yes，但是后面的内容与问题的主语不一致。(C)回答很乐意，即同意这么做。

The factory hasn’t been inspected, has it?
(A)The facts are not clear.
(B)Yes, it does.
(C)No, not yet.

Could we exchange business cards before I go?
(A)I think there are many cars.
(B)Yes, she has several of them.
(C)I’d be glad to.