The repetition of 'how we ended world war one' emphasises the fact that they are probably proud of the actions they've done to end the war. They want to inform you that they did these specific things to prevent the war from going on. It's like a reminder to the reader that the people then did a lot.
Answer:
1.) The dogs are lined up with their trainers.
2.) I wish my dog wasn't afraid
3.) This dog pushed another off the instructed course
4.) I'm doing this competition, because my friend advised me to
5.) She wished my dog would become better
Explanation:
Helpful?
