摘要：第一节 多项选择(共10小题,每小题1分.满分10分) 从A.B.C.D四个选项中.选出可以填入空白处的最佳选项.并在答题卡上将该项涂黑.21．The dog had such to its master that it would not leave him, even when he was dead． A．devotion B．contribution C．connection D．application

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