题目内容
I often see them ________ after class.
[ ]
A.play with yo-yos
B.playing yo-yos
C.to play yo-yos
D.to play with yo-yos
答案:A
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题目内容
I often see them ________ after class.
[ ]
A.play with yo-yos
B.playing yo-yos
C.to play yo-yos
D.to play with yo-yos