Question

【题目】— is it from here?
— About half an hour's walk.
A.How long
B.How far
C.How much
D.How many

Answer 1

【答案】B
【解析】句意：从这到那……？-大约要走半个小时。根据回答可知 此处是问路程有多远，因此用how far提问，故选B。