Answer:
Hello there! I'll try my best to answer these!
1. America was started in 1776 with the Declaration of Independence
- This is not about George Washington
2. His experience as an army officer helped him avoid two wars during his presidency
- That sentence should be before He stopped the whiskey...
3. Improved statement thing.
Put an "AND" after the word Pennsylvania and He.
It should look like this.
"...a war in Pennsylvania, and he kept us..."
(You should be able to find that part of the statement in you paragraph.)
Hope this helps!