问题
选择题
—Have you finished your homework ________?
--Not ________. I was playing computer games.
A．yet ,already
B．already ,yet
C．yet, yet
D．yet, yet
答案
答案：C
题目分析：句意：--你已经完成你的作业了吗？--还没有。我正在玩电脑游戏。分析现在完成的疑问句形式要将already 改为yet, 否定句中也要将already 改为yet,故选C