— John e here tonight?
—I’m not sure, but he stay at home.
A. May, might
B. Can, must
C. Must, might
D. Can, might
网友回答
A. May, might
B. Can, must
C. Must, might
(答案→)D. Can, might
解析：can、 may、might都可用来表达可能性，但may、might不用于疑问句，且might表示成为现实的可能性更小。由I’m not sure可知第二空应用might。故选D。