David, we shouldn't sit here doing nothing.
Why not? It's Saturday afternoon, isn't it?
Yes, but there's so much to do around the house.
It can wait.
We ought to finish washing down the kitchen walls and cupboards.
We can do that tomorrow. We don't have to do it today.
All right. But we must do it tomorrow, because the painters are coming on Monday.
Yes. And that reminds me. I must do something about that leak under the kitchen sink.
That's a good idea.
Talking about washing down the kitchen-where's Bob?
He's having lunch with Georgia.
What! Again?
He should be in soon.
He shouldn't spend so much time with that girl.
You must be patient, David. Nineteen's a very difficult age, you know.
Yes, I know. But he ought to be studying more.