He must be ill, ______?: doesn’t he|isn’t he|mustn’t he|needn’t he
举一反三
- He must be in the library now, ____? A: doesn't he B: mustn't he C: needn't he D: isn't he
- He must be helping the old man to water the flowers, ____? A: is he B: isn’t he C: must he D: mustn’t he
- He must be in the classroom, _______ he? A: mustn’t B: can’t C: isn’t D: can
- He knows so much about the story. He must have read the book,（） A: mustn't he B: hasn't he C: doesn't he D: didn't he
- He must have attended the meeting yesterday, ______ he A: didn't B: mustn't C: needn't D: hadn't