Question

【题目】Unbelievable! I used to think it was a task that could not possibly _______ (success).

Answer 1

【答案】succeed

【解析】

句意：难以置信！我过去认为这是一项不可能成功的任务。

possibly副词，可能；或许；强调惊奇，修饰后面的动词；success的动词为succeed。could是情态动词，后跟动词原形。故答案为succeed。