A、  B、  C、  B此题是一般疑问句，听音时抓住关键词are，used to，food可知，题于是在问“是否习惯这里的食物”，只有(B)“嗯，挺好吃的”是正确的回答。

Is check ok?
(A) Yes, the condition of this machine is very good.
(B) Yes, we should check if everything is Ok.
(C) Yes, you can use it.

Are you used to the food here?
(A) I often ate here in the past.
(B) Well, it’s delicious.
(C) Yes, I used to eat there.