10 баллов помогите плииииииз

1. He has never been to Africa. 2. They spent their holidays in the country last summer. 3. Last year we visited this town. 4. She has seen the film already. 5. She came here a year ago. 6. Mary and her friends climbed the volcano last summer. 7. I haven't been abroad since last year. 8. The city has changed very much for the last 10 years. 9. The sportsmen won all the gold medals in skiing last year. 10. I have never ridden an elephant.