All the tasks _______ahead of time ,they decided to go on ho

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/06/02 14:09:22

All the tasks _______ahead of time ,they decided to go on holiday for a week.
A had been filled B having been filled
C were filled D been filled
why

B having been filled
逗号后面是一个完整的句子,又没有and连接,所以,前面的句子,不应该是一个完整的句子,其他选项放进去,都是一个完整的句子,也就是说,had,were都可以做谓语动词.
D的话,没有have提示,怎么能用been呢,been是过去分词,和have一起,才能表示完成时的,不能单独用

All the tasks _______ahead of time ,they decided to go on ho 英语语法独立结构All the tasks —— ahead of time ,they decided to go o 英语语法问题 All the tasks______ahead of time,they decided to go o 1.All flights_____because of the storm,they decided to take they decided to hold the party ___(在户外) instead of in the ho They decided to go on a trip to the Great Wall during the su They decided to go to the nearest town,and to s--- at 6 on S The weather being fine,they decided to go for a picnic on th the experiment___,they decided to go on holiday for a week.A All flights ______ because of the storm,they decided to take They decided to go to school____instead of walking there. they decided to go to school ________instead of walking ther