—_________do you write to your parents?—Once a month.
#69791
A
How much
B
How often
C
How long
D
How
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—You used to play football, _______?
#69246
A
do you
B
don’t you
C
didn’t you
D
did you
It’s important_______us_______ to our teachers carefully in class.
#70736
A
of;listening
B
of;to listen
C
for;to listen
D
for:listen