1. Excuse me, I wonder if you know how to get to the Mountain Everest?
2. That person who is standing there is a badegg.
3. To tell the truth, I have loved a person. (I started loving a girl few months ago and still loving her in nowadays.)-- Your explanation does not match the sentence.
. Sorry, I just put in a correct answer without checking your original again. Mine is OK, but to more closely match your original: 16. I wish I hadmet you earlier.
Your source does not include all possibilities. These are all good grammar:
I wish I hadn't eaten so much. I wish I could have eaten more. I w