The phrase "dominating question" is correct and usable in written English.
It can be used to refer to a question that is particularly influential or central to a discussion or topic.
Example: "In our debate about climate change, the dominating question remains: how can we effectively reduce carbon emissions?"
Alternatives: "prevailing question" or "central question".
And the dominating questions will be, why is Christian's beard a different colour from his hair?
Marriage equality, education and tax reform are expected to dominate question time as parliamentarians head back to Canberra on Sunday for the first sitting week of the year.
The economic crisis again dominated question time exchanges, with Brown assuring MPs the government would do "everything it takes" to see the country through the downturn.
The release of correspondence surrounding the invitation dominated question time in both houses of parliament on Monday, and Heydon has foreshadowed a possible hearing on Friday to discuss union complaints about an alleged appearance of bias.
The issue, which dominated question time, began when the Sydney Morning Herald and Age reported on Tuesday that Mathias Cormann had not paid for family travel to Singapore booked on 17 July 2017, worth $2,780, until he was alerted to the issue by the newspaper.
So far, Mr. Cameron is standing by Mr. Mitchell, even though the embarrassment followed the prime minister to New York and dominated questions from British reporters traveling with him to the United Nations.
Just as Mr. Prabhakaran's fate dominates questions about the end of the war, his remorselessness and ruthlessness have made him the dominant figure in Sri Lanka for the past quarter century.
Just as Prabhakaran's fate dominates questions about the end game of the war, his remorselessness and ruthlessness have made him the single dominant figure in Sri Lanka's history for the past quarter-century.
And while the subject dominates questions to the player, his focus is elsewhere.
Thursday morning's announcement by Amazon dominated questions and answers during Walgreens hour-long third-quarter earnings call with analysts who wondered how the brick-and-mortar pharmacy chain would respond to the news.
