注意：此页面搜索的是所有试题
题目内容
（国家开放大学英语语法）
She has no idea of what the book is about. She ____ have read it carefully.
A.mustn’t
B.can.t
C.shouldn.t
D.needn.t
A.mustn’t
B.can.t
C.shouldn.t
D.needn.t
参考答案
