4) We have just come from a school trip.
5) Have you heard from Masha lately? I have already sent her two e-mails but she hasn't answered them yet.
6) English has become a global language lately.
7) Who has already got a good dictionary at home?
8) Nick's grandmother has never been away from her native town.
9) I have looked this information up in the Internet but haven't found anything interesting yet.
10) They have just passed their exams and feel very tired.