He has no idea what the book is about. H
题型:选择题
问题:
He has no idea what the book is about. He _____ have read it very carefully. [ ]
A. needn't
B. shouldn't
C. can't
D. mustn't
He has no idea what the book is about. He _____ have read it very carefully. [ ]
A. needn't
B. shouldn't
C. can't
D. mustn't