1.*'s new airport has been in service since 6 years.
问题描述：
1.*'s new airport has been in service since 6 years.
2.Millie has been to the USA for almost 10 years.
3.Sorry,I have never met you ago.
4.Her uncle isn't here.he's been to * on business.
5.I haven't visited * already.
6.He’s already weak in English ,hasn't he?
7.He has caught a bad cold since last week.
8.He has left Beijing since two`days ago.
9.Have there had a school for more than 100 years?
最好有讲解,
答
1.sincebeen
...wo de zhong wen da bu chu le - - dian nao chou jing - -