— Li Fan won the first prize in the national physics competition. — I he was the winner.A

问题补充：

— Li Fan won the first prize in the national physics competition.

— I he was the winner.

A. shouldn’t have thought

B. must have thought

C. need have thought

D. could never have thought

答案：

A. shouldn’t have thought

B. must have thought

C. need have thought

(答案→)D. could never have thought

解析：考查情态动词用法。Shouldn’t have done本不应该做某事，实际上却做了；must have done一定做了某事；need have done本需要做某事；could not have done不可能做了某事；句意：—李凡在国家物理竞赛里获得了第一名。—我不可能想到他是胜利者。故D正确。