Написать 10 предложений в present perfect

I have never been to London
He has just gone out
I have seen it
I have told him
We have already done it
I have not bought it yet
Mary has been to Liverpool
Ann has gone to Spain
She has not come yet
I have already read that book  

1.Он только что покинул офис.
He has just left office.
2.Он работал в этом офисе на протяжении пяти лет.
He has worked in this office for 5 years.
3.Мы общаемся друг с другом на протяжении десяти лет.
We have talking each other for 10 years.
4.Мы все еще не позвонили нашей бабушке.
We haven't phone our grandmather yet.
5.Вы когда-нибудь были в этом театре?-Да, я недавно был тут.
Have you ever been in this theatre?-Yes, I was recently there.
6.Он нашел много денег.
He has found a lot of money.
7.Студенты написали тесты без ошибок.
Students have writen the tests without errors.
8.Он только что вернулся из Парижа.
He has just arried from Paris.