I would suggest some deception here. If you just come out and ask a person if there are moral absolutes, with no other context, you are asking them to abandon their judgement.
"Is the color mauve good or evil? Answer 'good' or 'evil'."
"Is it right or wrong to shoot someone with a gun?"
"Is sex outside of marriage always wrong?" (What about animals?)
"Have you teenagers stopped being immoral yet?"
And yes, you may indeed have moral absolutes *in context*, once you know the individual circumstances involved.
But a person who surrenders judgement in the name of morality, becomes immoral themselves.
"Is the color mauve good or evil? Answer 'good' or 'evil'."
Evil. Only primary colors are good.