— Whose shirt is this?
— It ______ be Tony's. It is much too small for him.
- A.mustn't
- B.can't
- C.needn't
- D.won't
答案
正确答案:B
知识点:情态动词

根据句意可知,不可能是Tony的,是绝对的推测用can't.

情态动词是学生的难点,这道题掌握不住题干的语气就不知道到底要选哪个。
