问题
选择题
— _____ do you exercise?
— Twice a week.[ ]
A. How long
B. How often
C. How many
D. How far
答案
答案：B
搜题请搜索小程序“爱下问搜题”
— _____ do you exercise?
— Twice a week.[ ]
A. How long
B. How often
C. How many
D. How far
答案：B