填空题 It was essential that he should (fulfill) __ the task before the end of this week.

  • 1、
【正确答案】 1、fulfill    
【答案解析】[考查点] 虚拟语气
[句意] 他必须在本周末之前完成任务。
[解析] It was essential that句型中可由should+动词原形来构成虚拟语气。