问题
选择题
—_________ exercise do you need?
—I need about twenty minutes of exercise.[ ]
A. How many
B. How much
C. How often
D. How
答案
答案:B
—_________ exercise do you need?
—I need about twenty minutes of exercise.[ ]
A. How many
B. How much
C. How often
D. How
答案:B