---Excuse me, when is the Christmas party of our school? ---This year, it's_______18:00_______ Monday evening.
#46987
A
on; in
B
at; on
C
at; in
D
on; on
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---Where is your father? ---He          to Shanghai    business.
#50469
A
has been ;on
B
has gone; for
C
has been;for
D
has gone;on
I can help him ______his English.
#48752
A
with
B
at
C
on
D
in
The tourists are all interested            the Great Wall.
#48480
A
on visiting
B
to visit
C
in visiting
D
visiting