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英语几题容易错的题目,请能人进来解答并说明为什么

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英语几题容易错的题目,请能人进来解答并说明为什么
是对还是错,错的请在后面写出正确答案.
i have lost my key. i can't find it.
have you seen anne yesterday?
i have finished my work at 2o clock
i an ready now. i have finished my work.
what time have you finished your work?
gloria is not here .she is gone out.
jim is grandmother has died last night.
where have you been in 1998?
请大家帮忙解答,并且给我讲解一下,谢谢!
英语几题容易错的题目,请能人进来解答并说明为什么
1.错,lost不用现在完成时,丢了就是丢了,没丢就没丢.i lost my key.i can't find it.
2.错,Did you see Anne yesterday?
3.错,I finished my work at 2o'clock.有准确的时间点的不能用完成时!
4.对
5.错,What time did you finish your work?
6.错,she has gone out
7.错,Jim's grandmother died last night.die和lost一样,不能用完成时
8.对
再问: 那个第一题是对的,能不能详细说明一下第三题,有准确的时间点的不能用完成时。
再答: 因为他说完成工作时是2点,那么肯定是2点这个点做完的,是指一个动作的结束,完成时是指一个状态的结束在一段时间里连续,强调的是持续性。