As they had everything they needed, they were able to finish the task _____.
问题描述：
As they had everything they needed, they were able to finish the task _____.
A. behind scheduleB. before schedulec. ahead of scheduleD. on schedule
C D怎么觉得都可以
答
D,选C的话,就不能说万事俱备,这里的万事俱备是指task的的必要条件,只要有这些条件他们就能够按时完成任务；而要提前的话,光是必要条件还不够,得加上附加的能够让任务提前完成的条件,如as they had chance to steal t...