---          a month do you do voluntary work ? ---Twice a month. 
#59864
A
How long
B
How many times
C
How much
D
How often
推荐题目
There is a beautiful lake in this city,      ?
#65261
A
isn’t it
B
isn’t there
C
is it
D
hasn’t it
 — __________ did you pay for it?— $10.
#60071
A
How often
B
How many
C
How soon   
D
How much
I’m late for the meeting,      ?
#65233
A
amn’t I
B
aren’t I
C
don’t I
D
aren’t you
—                  ?   —I like action movies.
#59760
A
Do you like movies?
B
Do you like action movies?
C
What kind of movies do you like?
D
Where do you want to go?