I think something is wrong with Mr. Hudson. He's not as cheerful as usual.
I don't know what it could be.
I heard last week that his mother had been ill. I wonder if that's the trouble.
I doubt that. Yesterday he told me his mother felt much better.
Maybe he has a problem here at work.
I don't think that he has any problems with his job. It's well-known that Mr. Hudson is the best worker among us.
Perhaps there is some trouble in his home.
Well. The headmaster phoned this morning.