What are you doing _____ vacation?
#48594
A
for
B
in
C
on
D
at
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Can you buy me a birthday cake _____ the afternoon? Sorry, I busy. I can do it _____ Sunday afternoon.
#46328
A
on, in
B
in, on
C
in, at
D
on, at
I couldn’t follow what he said _______, but at last I understand.
#46617
A
for the first
B
at first
C
the first
D
at the first