— _____do they surf on the internet ?—Twice a week. 
#43517
A
How soon
B
How much
C
How many
D
How often
推荐题目
---_____ is Maria?    ----She is twelve years old.
#42525
A
What
B
Where
C
How old
D
How
What ________ do you want to buy?
#38744
A
other
B
else
C
else things
D
others
    this key is your mother’s.
#43580
A
May
B
Maybe
C
May be
D
Can
 I had my lunch half an hour ago. I’m not _____ hungry.
#40838
A
a little
B
little
C
a bit
D
a bit of
Let’s buy some more books this afternoon. 
#43345
A
other books
B
another some books
C
many books
D
some another books