--- ________ 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
I have a          trousers.
#45026
A
black long
B
long black
C
pair of black long
D
pair of long black
A _____ lazy man can’t earn _____ money.
#47146
A
too much; too much
B
much too; much too
C
much too; too many
D
much too; too much