独立主格结构的题2、They--------,the meeting was held according to scheduleA、having all arrived B、arrivingC、all arrived D、have all arrived3.All the task having been fulfilled ahead of time（提前完成了）,they decided to go on ho
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独立主格结构的题2、They--------,the meeting was held according to scheduleA、having all arrived B、arrivingC、all arrived D、have all arrived3.All the task having been fulfilled ahead of time（提前完成了）,they decided to go on ho
独立主格结构的题
2、They--------,the meeting was held according to schedule
A、having all arrived B、arriving
C、all arrived D、have all arrived
3.All the task having been fulfilled ahead of time（提前完成了）,they decided to go on holiday for a week.
为什么用having
独立主格结构的题2、They--------,the meeting was held according to scheduleA、having all arrived B、arrivingC、all arrived D、have all arrived3.All the task having been fulfilled ahead of time（提前完成了）,they decided to go on ho
having （been）done 表示在主句谓语动词之前已经（被）完成的动作
第二题中,人先到的,会议后召开的；
第三题中,先提前完成任务,后决定去度假.
选A All the task having been fulfilled ahead of time（提前完成了）, 为从句 。。。。。。。。。they decided to go on holiday for a week.为主句 。。。。。从句的动作发生在主句之前。。也就是说符合（过去的过去规则）。所以从句必需用完成时态