1. It was ________ of him to get angry about this kind of things. 
2. He’s been really annoying me and I think he’s doing it on ________ . 
3. Did you hear that noise, or was it my ________ ? 
4. It’s a ________ that the accident happened so near the hospital. 
5. After a few years’ civil war, the country’s economy lay in ________ .