- does she dance every day? ---For two hours. A. How manyB. How longC. How soonD. How o

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。