i am done & i have done有什么区别?
i am done & i have done有什么区别?
I have done和I am done有什么不同?
i have been done和i am done有什么区别?
I had done ,I have done ,I am done有何区别
i am not done 和 i ve not done有什么区别?
i've done和i'm done有什么区别?
I'm done 和 I've done有什么区别?
I am done什么意思
I thought I could have done it 和 I thought I could do 有什么区别?
have done.have been done .had done.had been done 有什么区别?怎么用?有
I finish doing my homework.I have done my homework.两句话有什么区别,
can have done和 could have done有什么区别?