---      do you surf the Internet?  --- Once a week.
#62132
A
How often
B
How long
C
How soon
D
How many
推荐题目
___his classmates___his Maths teacher has gone hiking. You can’t find them at  school.
#61999
A
Both, and
B
Neither, nor
C
either, or
D
Not only, but also
This book is a bit difficult. _______ read another one?
#62129
A
Why not to
B
Why not
C
Why don’t
D
How about
 --- ____________ he is, ____________ mistakes he will make. --- That’s true. That’s why he got a low mark again. 
#62093
A
The more careful, the less
B
The more careless, the more
C
The more careful, the more
D
The more careless, the fewer