Murphy, Unit 4, 4.4

1. I can't understand why he's being so selfish. He isn't usually like that.
2. Sarah is being very nice to me at the moment. I wonder why.
3. You'll like Debbie when you meet her. She is very nice.
4. You're usually very patient, so why are you being so unreasonable about waiting ten more minutes?
5. Why isn't Steve at work today? Is he ill?