---DidJackcomebackearlylastnight?  ---Yes.Itwasnotyete...

問題詳情：

 --- Did Jack come back early last night?

   --- Yes. It was not yet eight o’clock ______ he arrived home.

   A. before            B. until              C. when              D. af ter

【回答】

C

知識點：連詞

題型：選擇題