Ben is crying because he managed to become a prize winner / he has become a prize winner
Sue is smiling because is getting the gymnastics
Alice is crying because she has played a game of tennis badly
Mark is crying because he has gotten the silver in the one hundred-metre race
Nora is crying because she has missed the final figure skating competition
Rose is laughing because she has remembered her birthday party
George is smiling because he has made the world record
Polly is smiling because she has become a member of the local baseball team
Jim is crying because he has come first in an important horse race
Я использовала crying во многих случаях, так как спортсмены часто плачут от переизбытка чувств при победе. Можете поменять хоть и на
laughing
И еще - во втором предложении я использовала Present Perfect Simple так как это прошедшее событие, которое прямо повлияло на теперешнее - Он сейчас плачет (теперь), так как он выиграл (уже. прошедшее)