---Hi LucyHave you heard of any good news about Frank recently?---Yeah．She have done be

问题补充：

---Hi, Lucy．Have you heard of any good news about Frank recently?

---Yeah．She have done better．She has been admitted to one of the top-ten universities in the States．

A. shouldn’t

B. wouldn’t

C. needn’t

D. couldn’t

答案：

A. shouldn’t

B. wouldn’t

C. needn’t

(答案→)D. couldn’t

解析：

考查情态动词。couldn + 比较级,意思为“不能再...了”,即表示最高级“非常...”或“最...”的意思，根据句意选D。