A、  B、  C、  A(A)用no否定之后说明了理由是恰当的回答。(B)yes后面说的内容与问题没有任何关系。(C)该选项只是重复了问题中的how to，回答内容与问题没有任何联系。

Where should I put this computer?
(A)Yes, that’s fine.
(B)Over there next to the fax machine.
(C)I like the previous model.

Did you learn how to use this photocopier?
(A)No, I was too busy.
(B)Yes, he is running.
(C)I will tell you how to go there.