I have been doing sth.和I have done sth.有何区别?有个句子是这样的:Mr.Smith has lived in London since 1979.说是没有久居的意思,但是还有个句子I've lived here all my life.那么这个句子就是一个持久的典型.那么
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i has been doing 还是i have been doing
have been doing sth
Celia asks,What have you been doing these days?Celia asks () I () been doing those days.
have been doing 神马意思?
what you have been doing
Maybe I'm not perfect,but I have been doing myseMaybe I'm not perfect,but I have been doing myself.语法对吗
has been doing have been done区别
have been doing ,have done和have doing区别
I have been dreaming to be a teacher all the time.all the time 和have been doing是否重复?
i have been to和i have been doing 和i have been.区别i have been to和i have been doing 和i have been+done内些的区别~解释清楚点,内些死定义不太明白譬如说 我已经读过这本书我曾经买过一辆车都怎么说,
have been doing 为什么还有 have been deadj
have been do和have been doing的不同
翻译I have been doing my research work in this institute since last year.
英语:现在完成时应该什么时候使用?还有I have been doing这种形式又应该何时使用?
What have you been doing s__ I saw you last time?
I’ll go to the library as soon as I finish what IA.was doing B.am doing C.have done D.had been doing
have been doing,had been doing,will have been down是什么
英语比较厉害的 关于 have been 的用法的~have been do sth.have been doing sth.有什么区别?比如:I skated for 4 hours.和 I have been skated for 4 hours.有什么区别?