Later on, a valid question would be if a certain thing is in the bag.

Certainly, there are a lot of valid questions about whether I still have anything left.

But it's a valid question to ask who may later succeed him.

It's a valid question, and we'll answer it on the next page.

"And it's a valid question, but I'd like to give him at least a chance to answer it."

"Those are valid questions, but I'll be the one to ask them."

In terms of health and disease, it is a valid question.

When we asked valid questions, they gave us few or no answers.

When we talk about issues of concern, it is a valid question that you might take up.

A valid question is whether or not the plan could have been executed better.