Question

【题目】—_______ does it take you to get to Hainan by plane?
—Three hours.
A.How far
B.How many
C.How often
D.How long

Answer 1

【答案】D
【解析】句意：—乘飞机到海南需要花费你多长时间？—三个小时；A. How far提问距离；B. How many+可数名词的复数；C. How often提问频度；D. How long提问，for+一段时间。根据题意，回答的是three hours是一段时间，故选D。