I sometimes help my mom with her housework____________ Saturdays.
#45850
A
at
B
in
C
on
D
to
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____his surprise, he passed the exam.
#47574
A
On
B
In
C
To
D
At
He entered Peking University____. The people in his village are ____ him. 
#46195
A
in the end; pride in
B
at the end; pride of
C
in end; proud of
D
in the end; proud of
–Could you please take out the trash? --OK. I’ll do it ________.
#50970
A
at a minute
B
on a minute
C
for a minute
D
in a minute