问题描述：
the moment和once引导的从句小问题
--Did you remember to give Mary the money you owed her?
--Yes,I gave it to her _____I saw her.
A.while B.the momentC.suddenly D.once
请说明选B或者是选D的理由
以及它们的区别,
--Did you remember to give Mary the money you owed her?
--Yes,I gave it to her _____I saw her.
A.while B.the momentC.suddenly D.once
请说明选B或者是选D的理由
以及它们的区别,
问题解答：
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