---______ do you exercise? ---Once a week.
#60191
A
How long
B
How often
C
How many
D
How old
推荐题目
---________?----They’re fine, thanks.
#59765
A
Are they your grandparents
B
Do you like your grandparents
C
How are your grandparents
D
Where are your grandparents
Ｉdon’t think Linda could have done such a stupid thing last night，_________?
#64547
A
do I
B
didn’t she
C
did she
D
don’t I
—Are you going to the concert tonight?—I should have told you that I won’t, ______?
#64832
A
haven’t you
B
shouldn’t you
C
are you
D
will you