—Are there any balls under the chair? —.A. Yes there isB. Yes they areC. Yes there areD

问题补充：

—Are there any balls under the chair? —.

A. Yes, there is

B. Yes, they are

C. Yes, there are

D. No, there are

答案：

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。