Have been working for several years
Have been working for several years
For several years, scientists have been testing a substance
In a sense,I have been dead for several years.
They have been working ____ a teacher for 10 years.
He has been ( ) for several years
I have worked here for 2 years.和I have been working here for
I have been studying computer for several years and I still
1.I have been studying computer for several years and I stil
I have been working for more ten years.这里的for是否可以去掉呢
I have been working here ____ years.
英语选择题疑问1I have been working there for 15 years,and never bef
I have been working in this factory for about 20 years and s