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    精英家教网 > 高中英语 > 题目详情
    After 15 years in the USA, he finally decided to ________ American citizenship.
    A．concentrate onB．apply for
    C．put offD．lead to
    B

    试题分析：A. concentrate on全神贯注于，B. apply for申请，  C. put off推迟，D. lead to导致，句意：--在美国15年后，他最后决定申请美国公民。根据句意选B。
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