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He was born ________ June, 1989.
[ ]
A
B
C
D
We stay at home ________ Sundays.
[
What do you usually do ________ Christmas?
A．
in
B．
on
C．
at
D．
of
How much did you spend__________ this new jacket?
A．in B．on C．at D．of
I have a science class _______ Monday.