1. He has done his homework already.
2. We haven't seen him lately .
3. I have called up my friends today .
4. I have never been to New York .
5. Have you ever failed an exam ?
6. You haven't written them letters yet.
7. Peter has just gone to university .
8. My brother bought the new magazines this week .
9. Has Peter had lunch yet?
10. His sister has never seen this film.
11. Has he ever played these computer games ?
