问题补充：
--- is it from Suzhou to Beijing?
--- It used to be a long way, but nowadays, it takes only five hours to get there by high-speed rail.
A. How soon
B. How much
C. How far
D. How long
答案：
A. How soon
B. How much
(答案→)C. How far
D. How long
解析：how far 表示多远，根据下文的答语可知答案为C
