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—Who tocleantheclassroomyesterday? —LiMing. A....
问题详情:—Who tocleantheclassroomyesterday? —LiMing. A.helps B.helped C.ishelping D.willhelp【回答】B。此题考查一般过去时态。根据句意:“谁昨天打扫了教室?李明”前半句...