The part of a sentence 'left a question mark' is correct and usable in written English.
You can use it when you want to indicate that the last thing uttered or written is a question. For example, "What did you say? left a question mark".
José Tomás's horrific goring in Aguascalientes, Mexico had left a question mark over the rest of his appearances this year.
But the close involvement of Mr Murdoch, chairman of News Corporation, the parent company that owns the Times, and Mr Randall have left a question mark against Mr Stothard's future.
Lloyds TSB, the country's biggest provider of current accounts, yesterday left a question mark hanging over the future of free banking as it become the latest bank to report record profits for 2006.
James Murphy left a question mark hanging over LCD Soundsystem's future by telling interviewers that he didn't "repeating himself" and hinting that, after LCD's forthcoming third album, he will use other monikers for future releases.
Speaking of the scandal-plagued Institute for Religious Works IORR), known as the Vatican bank, the pope said the mission to make it more transparent "was on the right road" but left a question mark hanging over what its future role would be.
But the failure of Libyans to agree to the power-sharing plan has left a question mark over whether diplomacy can end a war that has plunged the country into chaos and made it a springboard for people smugglers and Islamic State (Isis).
That just leaves one big question mark: does The Phantom Pain still feel like A Hideo Kojima Game?
"I like things that leave a question mark," he said.
That still leaves a question mark over the No6 position.
It leaves a question mark over the funding of premium content".
But that nonetheless leaves a question mark over which of the many groups was involved.
