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The children decide _____ their school yard this Friday afternoon.

A.clean0 `, A1 B/ \8 ^4 A# fB.to clean8 X7 C# a7 J3 B; M' ZC.cleaning2 [; d% g d- H5 S/ f% A7 b" @D.cleaned- ^4 i2 ?0 E$ S

答案B

解析