---How is it from here to the bookstore?About 20 minutes by bus.A. longB. soonC. farD.

问题补充：

---How is it from here to the bookstore?

--About 20 minutes by bus.

A. long

B. soon

C. far

D. often

答案：

A. long

B. soon

(答案→)C. far

D. often

解析：句意：从这里到书店有多远？坐公交车大约20分钟。How long多长；how soon多快；how far多远；how often多久一次；C符合题意。