Use present perfect to complete the sentences below:
1. He (be)..........at his desk for six ours.
2. She (not/have)..........any fun for a long time.
3. My mom (not/play)..........any sport since last year.
4. I should take shower now. I (not/have)..........one since Friday.
5. Now, I don't live with my family so we (not/see)..........me for live year.
6. I..........lately (realize)..........that there are only three weeks to the end of term.
7. She (finish)..........reading three books recently.
8. How long..........(you/know)..........your friend?
9. ..........(you/take)..........many photographs?
10. ..........he (eat)..........at the Chinese restaurant yet?