问题补充:
— Will you go out to play for a while, Kate?
—Not I finish all of my homework.
A. when
B. if
C. after
D. unless
答案:
A. when
B. if
C. after
(答案→)D. unless
解析:句意:--你出去玩一会好吗,凯特? --不,除非我完成所有的作业。这里是省略句,完整的是I will not go out to play unless I finish all of my homework.unless引导条件状语从句“除非,如果不”,when“当…时候”,if“如果”,after“在…后面”,选D。