— —They’re under the chair.A. Where is your baseball?B. Where are your baseball?C. Where a

问题补充：

—

—They’re under the chair.

A. Where is your baseball?

B. Where are your baseball?

C. Where are your keys?

D. Where is your keys.?

答案：

A. Where is your baseball?

B. Where are your baseball?

(答案→)C. Where are your keys?

D. Where is your keys.?

解析：

这是一道补全对话式的考题。要解决这类题目，就必须考虑答语的内容。此题答语意为：在椅子下面。主语为They，因此，问句的主语必须是复数。选项D主谓不一致。故选C.