Marry was so excited she received an invitation from her friend to visit Beijing.A. where

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A. where
B. that
C. why
(答案→)D. when
解析：考查时间状语从句。句意：当她收到来自朋友的邀请，邀请她去北京，Marry是如此的兴奋。故D正确。本题容易错选so…that…如此…以至于…；that引导的是一个结果状语从句。