问题补充:
--- does she dance every day?
---For two hours.
A. How many
B. How long
C. How soon
D. How often
答案:
A. How many
(答案→)B. How long
C. How soon
D. How often
解析:句意:——她每天跳舞用多长时间?——两个小时。A. How many多少,对数量提问; B. How long 多长时间,对时间段提问;C. How soon 将用多久,对将来时提问;D. How often多久一次,对频率提问。根据For two hours.可知这是对时间对提问,故选B。