----        does your sister surf the internet?---- About once a week.
#43972
A
How long
B
How often
C
How many
D
How soon
推荐题目
The young man _____ get up late, but now he _____ getting up very early.
#43957
A
is used to; used to
B
used to; is used to
C
used to; used to
D
was used to; is used to
—       will your brother be back ? —In two weeks. 
#39087
A
How long
B
How often
C
How far
D
How soon