He ought to win the first prize he?A. oughtn’tB. shouldn’tC. mustn’t D. both A and B

问题补充：

He ought to win the first prize, he?

A. oughtn’t

B. shouldn’t

C. mustn’t

D. both A and B

答案：

A. oughtn’t

B. shouldn’t

C. mustn’t

(答案→)D. both A and B

解析： ought to的反意问句应用oughtn’t或shouldn’t开头。