bonus; bond; biography; breakthrough; brochure; bravery; border; budget; brake; bother
1) ____________ a piece of equipment that makes a vehicle go more slowly or stop
2) ____________ money added to someone's wages, especially as a reward for good work
3) ___________ to make someone feel slightly worried, upset, or concerned
4) ___________ a book that tells what has happened in someone's life, written by someone else
