问题:
—_______ does it take to go to the zoo on foot?
— About half an hour, I think.
[ ]
A. How far
B. How long
C. How many
D. How much
—_______ does it take to go to the zoo on foot?
— About half an hour, I think.
B. How long
C. How many
D. How much
— About half an hour, I think.
[ ]
A. How farB. How long
C. How many
D. How much
参考答案: