题干
---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．
---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(点此获取答案解析）
D
