问题补充:
— have you been to Taiwan?
— Only once.
A. How often
B. How many times
C. How long
D. How soon
答案:
A. How often
(答案→)B. How many times
C. How long
D. How soon
解析:A. How often多久一次,表示频率;B. How many times 多少次,常和完成时态连用 ;C. How long 多长时间或是距离;D.How soon 多久,一般用于将来时态中;故选B.句意:你去过几次台湾呢?仅有一次。