Question

He knows so much about the story. He must have read the book,_____?

A．mustn’t he

B．doesn’t he

C．hasn’t he

D．didn’t he

Answer 1

C

“He must have read the book”中must 表示“一定，想必”等推测意义，而不表示“必须、禁止”等意义。“He must have read the book”相当于“I’m sure he has read the book”相一致，即用hasn’t he, 而不用mustn’t he。