—    do you surf the Internet?—Every day.
#60001
A
How long
B
How far
C
How often
D
How soon
推荐题目
He must have known the truth yesterday, _________?
#64623
A
haven’t you
B
didn’t you
C
have you
D
did you
The student must have been ill yesterday, ______?
#65069
A
mustn’t he
B
needn’t he
C
didn’t he
D
wasn’t he
What _____ he usually ______ after class?
#59913
A
is, doing
B
does, does
C
do, does
D
does, do
We had hoped that you would be able to visit us, but you    .
#64660
A
didn’t
B
hadn’t
C
wouldn’t
D
would not have