I would have sent E-mail to you if I (have) ______ your E-mail address.had had本题

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问题 I would have sent E-mail to you if I (have) ______ your E-mail address.

选项

答案 had had

解析 本题考查虚拟语气。由if引导的假设从句,主句用 would+现在完成时,从句应该用过去完成时,表示对过去某种情况的假设。
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