All the tasks ______ ahead of time, they decided to go on holiday for a week.A、b

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问题 All the tasks ______ ahead of time, they decided to go on holiday for a week.

选项 A、been fulfilled
B、having been fulfilled
C、were fulfilled
D、had been fulfilled

答案 B

解析 独立主格结构题。分析句子结构发现,此空部分为整个句子的状语,“分词逻辑主语+分词”为独立主格结构,可在句中作状语。因为分词逻辑主语和分词之间是被动关系,同时又发生在谓语动词decide之前,故用现在分词的完成被动式having been fulfilled。
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