—Mum, I’ve been studying English since 8 o’clock. I go out and play with Tom for a while?
—No, I’m afraid not. Besides, it’s raining outside now.
A. Can’t
B. Wouldn’t
C. May not
D. Won’t
网友回答
(答案→)A. Can’t
B. Wouldn’t
C. May not
D. Won’t
解析：请求允许原本用may﹑can，用can’t替代语气更强烈。