— hours of sports do you do every week?—Six hours.A. How long B. How soonC. How much D. Ho

问题补充：

— hours of sports do you do every week?

—Six hours.

A. How long

B. How soon

C. How much

D. How many

答案：

A. How long

B. How soon

C. How much

(答案→)D. How many

解析：根据答语可知询问的是时间段，又因原句中有单词hours，故选how many。