ВСТАВЬТЕ ГЛАГОЛ В ПРАВИЛЬНОМ ВРЕМЕНИ - PAST SIMPLE или PRESENT PERFECT.
1. lose
a) I lost my key last Monday.
b) I have lost my key, I can't open the door.
2. live
a) They have lived together for 3 years.
b) My cousin lived in the countryside when he was little.
3. go
a) Did you go to the party?
b) Has she gone to the party already?
4. graduate
a) My eldest son graduated from University in 2010.
b) I hve just graduated from my University.
5. hear
a) When did you hear from them last time?
b) Have you heard anything from him?