you told me in secret, I had heard nothing about it.
A．WhileB．UntilC．AfterD．Since
選B�？疾闋钫Z(yǔ)從句。句意: 直到你秘密告訴我之前, 我對(duì)那件事一無(wú)所知。此處until相當(dāng)于before, 表示“直到……為止”。
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