16. A:_________ the end of the contest, our team sang and danced so well. B:So, _________ the end, y
問題詳情
16. A:_________ the end of the contest, our team sang and danced so well. B:So, _________ the end, you all had a wonderful time, right? (A) In;at (B) At;in (C) At;at (D) In;in