问题补充:
— should we clean the library?
—Twice a week.
A. How many
B. How much
C. How long
D. How often
答案:
A. How many
B. How much
C. How long
(答案→)D. How often
解析:本题回答语表示的是频率,对此提问用how often,故本题选D。
时间:2019-11-26 17:20:54
— should we clean the library?
—Twice a week.
A. How many
B. How much
C. How long
D. How often
A. How many
B. How much
C. How long
(答案→)D. How often
解析:本题回答语表示的是频率,对此提问用how often,故本题选D。