1.uptight
Penny never got uptight about exams.
2.pep
Many say that, given a choice, they would opt for a holiday to put the pep back in their lives.
3.rue
Tavare was probably ruing his decision.
4.Boomerang
Boomeranging is a dangerous game.
summary:
Before the Quidditch match between Gryffindor and Slytherin started, Woods had done his pep speech to the members of Gryffindor's team, especially to Harry. Something strange happened during the match. The Bludger always flew to Harry even George hit it as heavy as possible every time.