Since when have you been in this item's segment of business
Since when have you been in this item's segment of business
how long has this food store been in business?since
You may have this item in the past in a different form of pa
Have you been in this lab before?解释Have been
It's the third time__late this week答案为什么用when you have been而
long have you been in this city?
since when have you been so nice这是个什么句子,具体分析下语法,谢谢
But people have been gossiping since the dawn of time!It's s
I have been talking to a group of salesmen since ten this mo
I have been teaching in this school since three years ago.变同
where have you been recently?i was in beijing on business fo
how long has it been since you have had this engine tuned ?麻