- did you pay for the CD? ---Only nine dollars.A. How manyB. How muchC. How longD. How

问题补充：

--- did you pay for the CD?

---Only nine dollars.

A. How many

B. How much

C. How long

D. How often

答案：

A. How many

B. How much

C. How long

D. How often

解析：考查疑问副词的用法。根据答语中提到的多少美元，肯定是在问价格，用How much提问。故选D。