You only get a chance in the first round to ask one question.
Just before we close, let me ask one question.
I think we could do it if we only ask one question.
"I have made this long journey just to ask one question."
I'll ask one question with a long preamble.
Je vais poser une question avec un long préambule.
Of course, you forgot to ask one question.
Mais, tu as oublié de poser une question.
But today I would like to ask one question.
Mais aujourd'hui, je voudrais poser une question.
I would ask one question, however.
Toutefois, je voudrais poser une question.
Joe, you can ask one question.
Joe, vous pouvez poser une question.
Before I do so, I want to ask one question of the airline industry.
Mais auparavant j'aimerais poser une question aux compagnies aériennes.
I just want to ask one question and I'm asking it out of deep sincerity.
Je veux seulement poser une question et je la pose en toute sincérité.
He suggested a game that both of them will ask one question to each other.
Il a proposé un jeu où chacun devait se poser une question.
She wished to ask one question and make one comment.
L'intervenante souhaitait poser une question et faire une observation.