1. Wow! I (have never seen) such a beautiful picture!
2. Excuse me. What (has happened) in here ?
3. Sorry, but I (have been) very busy lately.
4. Yes, my brother (got) married last Saturday.
5. My favorite singer (has just released) a new album.
6. You (have not applied) for the job yet.
7. We (have not heard) about Sonia so far.