1)The way this is written is incorrect. The correct way to say this would be “that I aspired to become.” 2) “The kind of person that you’re committed to becoming” is correct.

“How much longer do I have to wait?” Is correct. “How much longer do until I have to wait?" - you cannot use “do” before “until” in this situation, and “until” in this sentence indicates that you are going to wait awhile and THEN start ‘waiting’ which is an unlikely situation I think. Your pattern above is correct of “how much longer until” + subject + verb. Here are some more examples: How much longer until I can eat? How much longer until we get there? How much longer until this is over? If you want to use the verb ‘do’ in the auxiliary sense of ‘must’ with this initial phrase you can’t use “until”. “Until” indicates something in this future and doesn’t work with this phrase. Some examples: How much longer do I have to sit here? How much longer do I need to wait? How much longer do you think you’ll be? (If you really want to work them both into a sentence you could potentially say something Nd like “How much longer do you think it’ll take until you’re done?” But you still need a subject+ verb following “do”)

Yes, both. “What are the circumstances that lead to you being here?” Could be your reason for visiting or also the way in which you arrived (maybe you never intended to be there in the first place)

Hi Sonia, I think in this situation they are more or less the same. If I had to specify a difference between them: “Let’s check another store” : definitively suggests that you are searching for something (the perfect pair of shoes to go with your outfit) “Let’s check out another store” : might mean you are looking for something or it could mean that you are just interested in looking around another store (maybe you’re bored, or the music is too loud, etc) In many situations you could use either, and people will understand what you mean depending on the context.