Răspuns:
1. I have finished an interesting detective novel.
2. The boys have played for 2 hours.
3. The student has watched a video tape on wild life.
4. 1) Tony has had his hair cut short
2) Tony had his hair cut short.
(Nu sunt sigur cum e aici, cred ca mai bine folosesti varianta 2)
5. The boy has waited for the next train to London.
6.His parents have talked to the principal today.