1) Helen used to take part in different kinds of competitions in her childhood.
2) You must try your best to win in so diffucult competition.
3) If John doesn't calm soon, he'll probably lose the competition.
4) Alice is in luck today- she has found 20 $ in front of her house!
5) Nick is always out of luck,because he gets into trouble everyday.
6) Good luck to you, Mom!
7) Try your chance and speak to her - I am sure, she will answer.
8) You didn't send your application letter (резюме) in time, so it's no wonder, that you've missed your chance to find better job.
9) Eliza has no chances to pass the math exam ,because she doesn't understand it at all.
10) It's chance in a million to enter so prestigious university.