Student or Learner
So how to apologize? Here is my cardinal rule for how to frame an apology: genuine apologies never contain the words "if" or "but." For example, never say, "I'm sorry if I hurt your feelings," or "I apologize for being insensitive, but such-and-such happened earlier ..." Those words have the effect of rescinding the apology by either calling the injury into doubt or assigning true responsibility elsewhere.
More: The Art of the Apology | Psychology Today
Are the underlined parts interchangeable?
To me, call into doubt and call into question are interchangeable.