–Kate do you know it is from here to the gym?–About twenty minutes’ walk.A. how longB. h

问题补充：

–Kate, do you know it is from here to the gym?

–About twenty minutes’ walk.

A. how long

B. how far

C. how soon

D. how often

答案：

A. how long

(答案→)B. how far

C. how soon

D. how often

解析：句意：Kate,你知道从这到体育馆有多远吗？大约二十分钟的路程。how long 多长时间，对一段时间提问；how far 多远，提问距离；how soon 多快；how often 多久一次。根据下句的回答，可知此处问的是距离，故选B。