He has been working here.为什么要用working?
He has been working here.为什么要用working?
Jim ____ here since he came here.A.has been working B.works
he has been working on the paper.
he has been working there ( ) 1998.
用括号里的词回答:1.How long has your sister been working here?(June)
① he has been working for five hours for five hours用它提问、
How long have you been working here?
I have been working here ____ years.
He has no trouble working on this problem,句子中为什么用 no,为什么用 on
He said (that) he had been working here for years and that h
has been working on his degree是什么意思
She has been working for 20 hours