题目

His aunt’s letters ________ him of those beautiful days when they used to live together in his hometown. A. call up      B. call for     C. call on        D. call at 答案： A 解析: call up“回忆、想起”；call for“需要、要求”；call on“号召、恳求、拜访(某人)”；call at“(到某地)访问”。

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