By the 19th century, the debate had become less sectarian and more scholarly.

Yet the debate over strategic defense, rather than growing focused, has become largely irrelevant.

In recent years, debates about the nature of law have become increasingly fine-grained.

But by now the debate had become personal and the scientific combatants were beyond surrender.

It is at the local level, with the board of education in control, where the debate and the decision become really interesting and important.

The debate about health care has also become heavily ideological.

This debate was becoming much more interesting to him.

But the debates had become over the years more edged, and then angry.

You know that in my country the debate is becoming heated.

Our debate this evening will now become a touch more formal.