The radicals seemed to be confronted with a classic question: what is to be done?

Asked the classic question - Where do you go from here?

One of the classic questions is when are attitudes a predictor of behavior.

It's that classic parental question - what can the kids watch and when?

Despite great progress in the twentieth century, much more remains to be done before we can provide full answers to these classic questions in ecology.

And for longer than many house-plant devotees can remember, the answer to that classic question - "What is it?"

This becomes a classic chicken-or-egg question for planners and historians.

This approaches classic questions of theology from a different route than Hakira.

Though formerly a journalist, he never asks the classic questions of a reporter in a strange environment: Who runs this place?

In addition, we are, indeed, dealing here with a classic question of recognition.