—Whenwillyoureturnthebooktome? —I’llgiveittoyou

問題詳情：

—When will you return the book to me?

 —I’ll give it to you _______ I finish it.

          A. once         B. until        C. as soon as       D. unless

【回答】

C

知識點：連詞

題型：選擇題