To Be, To Have, Being

Answers

1. One of my neighbors disappeared a few months ago. He has not been seen since then.
2. At first, there were some problems but they seem to have been solved
3. A new supermarket is going to be built here next year.
4. The music could be heard from a long way away.
5. I want to be left alone.
6. We went to the party without being invited.
7. He looks older than he is
8. She seems to be angry about something.
9. He didn’t seem Either could be used here
10. That cloud looks like an elephant.
11. He doesn’t seem to be/seem ready yet.
12. That sounds like a good idea.