问题补充:
—Do you know where the headmaster is? I have something urgent.
—Oh, he have gone far, for the computer is still on in the office.
A. won’t
B. mustn’t
C. can’t
D. wouldn’t
答案:
A. won’t
B. mustn’t
(答案→)C. can’t
D. wouldn’t
解析:情态动词用法题。can’t表推测“不可能”,句意:你知道校长在哪么?他不可能走远因为他办公室的电脑开着。