Thank you all, I'm a native speaker of English and couldn't for the life of me figure out if it there was more than one way to spell through. If a native speaker has trouble with the spelling of this word, I can only imagine how hard it must be for someone else! Definitely not a stupid questions Anon.
Thank you, actually could not spell, and I have a high vocabulary, and spelling is not an issue for me, but due to the annunciation, I could not figure it out myself. Which brought me here. So definitely not a stupid question.