In fact, it's little use asking him much of anything.

"There's no use asking you not to take the necessary ones."

I did want to know, but there was no use asking.

Then he knew there would be no use asking questions at random.

Well, he wasn't a Computer, so there was no use asking himself that question.

It is no use asking him anything he does not want to tell.

It was no use asking the tourist questions, because he couldn't remember the answers.

Something told him it was no use asking any further questions.

It was of no use asking myself this question now.

It's no use asking anybody else that I can think of.