单选题 Which of the following sentences expresses WILLINGNESS?
A．He may not have finished the work. B．You must obey the school rules.
C．You shall fail if you don't work harder. D．I'll never make such a mistake.

【正确答案】 D
【答案解析】[解析] 句意理解题。D句意为“我再也不犯这样的错误了”，其中will表达的是“意愿”，故为答案。中may表达了“推测”；B中must表达了“命令”；C中shall表达了“推测”。