—Lucy do you have art lessons?—Twice a week.A. how longB. how soonC. how manyD. how ofte

问题补充：

—Lucy, do you have art lessons?

—Twice a week.

A. how long

B. how soon

C. how many

D. how often

答案：

A. how long

B. how soon

C. how many

(答案→)D. how often

解析：根据答语可知答案为D