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Onedayhefound()schoolbagandtherewas()"S"on()schoolbag.A.a;an;theB.a;a;theC.the;a;a

题目详情
One day he found ( )schoolbag and there was ( )"S"on ( )schoolbag.A.a;an;the B.a;a;the C.the;a;a
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答案和解析
A