All the kids had a lot of fun ________ Children’s Day. They sang and danced happily all day. 
#51387
A
in
B
at
C
of
D
on
推荐题目
My friend Jimmy was born_______1998_____ a winter morning _______December.
#51019
A
in; on; /
B
in; in; /
C
in; in; of
D
in; on; of
 Don’t read _______. It’s bad for your eyes.
#46001
A
in the bed
B
in bed
C
on the bed
D
on bed
____ the government’s efforts, our life is becoming better and better.
#46466
A
Instead of
B
Thanks to
C
Thanks for
D
In order to