--- 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
He must be helping the old man to water the flowers，________？
#64494
A
is he
B
isn't he
C
must be
D
mustn't he
I don't think a warm winter always has a negative influence on our life, _____?
#64731
A
do I
B
does it
C
hasn't it
D
don't I
. You can hardly recognize him in the photo, ________?
#65061
A
can you
B
can’t you
C
do you
D
don’t you
The restaurant must be crowded from ________number of cars parked in front of it,________?
#65470
A
a;isn’t it
B
the;isn’t it
C
the;mustn’t it
D
a;mustn’t it
Whoever wants to go hiking this weekend, raise your hands, ______?
#64774
A
do you
B
don’t you
C
will you
D
will they