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Could he have finished the task?
为什么要用现在完成时呢？这不是猜测吗？
网校学员cly**在学习英语零基础直达大学六级【12月特惠班】时提出了此问题，已有1人帮助了TA。
网校助教
清醒季smile
同学你好，该知识点来自沪江网校《英语零基础直达大学六级【12月特惠班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。
同学你好~could have finished是表示对过去的推测，could have done表示过去可能做了某事，也是一种表示推测的用法，比如
No one could have foreseen things would turn out this way.
谁都没有预料到事情的结果会这样。
It's not funny! Someone could have been hurt.
这没什么好玩的！可能有人会受到伤害。
祝同学学习进步~
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英语零基础直达大学六级【12月特惠班】
已有10人在本课程中发现了177个知识
已有140个知识得到了老师的回复
本课程热门知识点
- He dreamed of having a new car.为什么dreamed要加ed
- 你好，有没有对应各个时态的例句？
- Both girls write to each other regularly now.
- 直接引语变间接引语时
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thank 和 thanks 怎么用？
thanks for you
还是thank you for sth？ -
all the flights--------because of the snowstorm，we had to take the train instead.
A,had been canceled
B,having been canceled
选哪个？为啥 - He told me that the firm could not afford to pay such large salaries.
- Apart from being a bit too long,the play was very good.
- Apart from being a bit too long,the play was very good.
- It is always the same on these occasion.