问题描述:
( )During the after-school activities,some students are playing ___on the playground while the rest
____doing some homework in the classrooms.
A.happy,are B.haaily,are C.happily,is D.happy,is
____doing some homework in the classrooms.
A.happy,are B.haaily,are C.happily,is D.happy,is
问题解答:
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