◎ 题干
All the tasks___________ahead of time, they decided to go on holiday for a week.
[     ]
A. been fulfilled    
B. were fulfilled  
C. having been fulfilled    
D. had been fulfilled
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“All the tasks___________ahead of time, they decided to go on holiday for a week. [ ]A. been fulfilledB. were fulfilled C. having been fulfilled D. had been …”主要考查了你对  【现在分词的被动式】【现在分词的完成式】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。