问题补充：
--- English classes do you have every week?
--- Five.
A. How often
B. How long
C. How much
D. How many
答案：
A. How often
B. How long
C. How much
(答案→)D. How many
解析：How often多久一次；How long多长；How much多少钱；How many多少个。根据下文，五个。可知上文对数量进行提问，故选D，你每周上多少节英语课？
