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Their youngest girl is at the stage ______ she can say a single word but not a full sentence

A. when B. which

C. that D. where

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閱讀理解。

When I first got an e-mail account ten years ago, I received communications only from family, friends, and colleagues. Now it seems that every time I check my e-mail, I have an endless series of advertisements and other correspondence that do not interest me at all. If we want e-mail to continue to be useful, we need specific laws that make spamming(發送垃圾郵件) a crime.

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