Question

– How wonderfully you are playing the piano!         do you practice it a week?
- Twice. Practice makes perfect.
A. How often         B. How many times      C. How soon

Answer 1

B

How often多久一次；How many times多少次；How soon多久。根据下文，两次，熟能生巧。可知上文提问的是次数，故选Ｂ。