--- ________ do you help your mother clean the house? --- Once a week.
#47256
A
How far
B
How long
C
How soon
D
How often
推荐题目
We will have 7 days ______during National Day.  
#45903
A
rest
B
leave
C
holiday
D
off
The dolphins ____________interesting in the zoo.
#46621
A
kind of
B
kinds of
C
are kind of
D
are kinds of
He is not as ______ as his younger brother.
#45246
A
strong
B
stronger
C
strongest
D
the strongest
---How ____ is it from here Ningbo to Xi'an?  ---It's about two ____ flight.    
#45774
A
long, hour's
B
far, hour's
C
long, hours'
D
far, hours'
If you are an outgoing boy, you will have _________ friends.
#45184
A
a few
B
few
C
hardly any
D
plenty of