-- is it from Beijing to New York?
--More than 30,000 miles.
A. How far
B. How often
CHow long
D. How much
网友回答
(答案→)A. How far
B. How often
C. How long
D. How much
解析：
根据答语超过30000英里可知是问距离。How far问距离，有多远；how often多久一次，问频率；how long问时间或是物体的长度；how much问多少，用于不可数名词，故选Ａ。