—Are there any balls under the chair? — .
A. Yes, there is
B. Yes, they are
C. Yes, there are
D. No, there are
网友回答
A. Yes, there is
B. Yes, they are
(答案→)C. Yes, there are
D. No, there are
解析：are there···？其肯定回答为Yes，there are。或No，there aren’t，故选答案为C。