We debated on the question of world population.

They seemed to be discussing a matter of great importance.

They talked over the plan for hours.

That matter is the same one that we discussed the other day.

That question isn't appropriate.

Speaking for itself, Booking.com later issued a statement acknowledging the meeting with the Russian government, but implied that the company is still keeping its options open.

What was discussed?

We will leave this question aside for the moment.

This question is one of great importance.

This matter is of great importance.

This question has often arisen.

This question has often come up.

This question has often been raised.

This matter is very urgent.

This question is very simple.

I'll look into this issue more.

Don't ask that question.

Don't ask that question.

Tom addressed that point.

That topic comes up often.

I love that question.

They were discussing the anti tabacco law.

They discussed the problem.

We've discussed this.

That may sound like a radical question.

But something deeper is at work.

That is not an easy question to answer.

You should do so they have elucidated the question!

Why is this issue being raised by men?

That's the question everyone has these days.

You should consider the problem.

The question doesn't concern me.

We have to study the matter.

This question is one of great importance.

The answer to this question is wrong.

This question is difficult to answer.

It is easy to answer this question.

Let's discuss the matter here.

It is difficult for me to understand this question.

I refuse to discuss the question.

They will debate the question tomorrow.

It's difficult to answer this question.

I have often been asked that question.

Let's reconsider the problem.

I'll answer that question.