Question

【题目】--Have you finished your homework___________? ---Yes. I _________it twenty minutes ago.

A. yet; finished B. already; have finished C. yet; have finished D. already; finished

Answer 1

【答案】A

【解析】句意：——你已经完成你的作业了吗？——是的，我20分钟前完成的它。yet已经，还，用于否定句和疑问句；already已经，用于肯定句；所以排除B/D；根据 twenty minutes ago可知用过去时态；故选A