Hello, my name is Gabriel and I'm from Brazil. I have 9 question to do... so let's go !
1- What's the difference between "Whose" and "Who" ?
2- What's the difference between "Been" and "Gone" ?
3- When I use "a", "any", "an" and "some" ?
4- The words "to" and "too" have the same meaning ?
5- What's the meaning of enjoy ?
6- For I can speak a good english, I have to go to another country ?
7- What's the difference between "Thought" and "Though" ?
8- What's the difference between "Everybody" and "Everyone" ?
9- When I use "at" and "in" ?
Welcome, Gabriel. When you start to post your questions one at a time, remember the following: Such broad-ranging questions as these are not really what the forum is intended for. You can research such usages in grammar books and on the internet. When you do come to post a question, please give example sentences containing each of the words you are querying, then we can comment on whether you are using them correctly.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.