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where are you still here?it's almost eight o'clock. because

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where are you still here?it's almost eight o'clock. because i （）my work
为什么填haven't finished
where are you still here?it's almost eight o'clock. because
原来你有这样的疑惑啊,是的,现在完成时是指动作完成,或者对现在造成的影响.事实上很多定义都是针对这个时态的肯定句来的.如果变成否定的话就变成了动作没完成,没造成影响呗.
给你举个例子,I did my homework. i didn't do my homework.
第一句表示过去发生的动作用了一般过去时,第二个句子不是发生在过去我们,也就是我过去没做,那难道第二个句子就不用一般过去时了吗.
总的来说现在完成时的定义完整的应该是,现在完成或没完成的动作,对现在造成影响或没造成影响,要学会举一反三啊.
where are you still here?it's almost eight o'clock. because Alex:Why are you still here?It’s almost eight o’clock.Tom:Be It's(o )eight o'clock.It is still early It's eight o' clock now,several ____are still skating It's nearly eight o' clock,They_be here now （ It’s eight o’clock It's eight o'clock.怎样提问? it's eight o'clock already. Jack be here by now. It's nearly eight o'clock.He ( ) be here at any moment. Can you be here at eight o'clock?英语翻译 it"s eight o'clock.let's ________our class It is eight o clock,