If you mean WW2, its because America wanted isolationism and didn't want to fight in the war. They were able to stay out of it for as long as they did because they didn't take sides.
Answer:
1.) Add a comma in between weather and because, make the "b" lower case.
2.) Take away the period and make the "I" in if lower case.
3.) Put a comma after "day" and take away the period between "sale" and "and"
4.) Put a comma after street (make sure when adding commas to change the word after it to a lower case.)
5.) No need for changes.
6.) Put a comma between "cry' and "Maria".
7.) No need for changes.
8.) Make the period a comma between the "response" and "A"
9.) No need for changes.
10.) Change the period into a comma between "toys" and "turning"
Los historiadores tratan de comprender el pasado haciendo preguntas como "¿qué pasó?", "¿por qué pasó?" y "¿cómo sabemos estas cosas?"
Answer:
C boys where educated while girls learned how manage hoshold
Explanation: