-_are the socks? - They are two dollars.A. WhereB. WhoseC. How muchD. How long

问题补充：

-_are the socks?

- They are two dollars.

A. Where

B. Whose

C. How much

D. How long

答案：

A. Where

B. Whose

(答案→)C. How much

D. How long

解析：句意：---袜子多少钱？---二美元。where在哪里，whose谁的，how much问价格，how long多久。根据题意，故选C。