you told me in secret I had heard nothing about it.A. WhileB. UntilC. AfterD. Since

问题补充：

you told me in secret, I had heard nothing about it.

A. While

B. Until

C. After

D. Since

答案：

A. While

B. Until

C. After

D. Since

解析：选B。考查状语从句。句意: 直到你秘密告诉我之前, 我对那件事一无所知。此处until相当于before, 表示“直到……为止”。