Matching Pairs Expressions with Keep and StayOnline version Match the expression with the correct definition by Pedro Torres Hernandez 1 Keep / Stay in touch 2 Keep expenses down 3 Stay awake 4 Keep / Stay out of trouble 5 Keep up with current events 6 Keep in perspective to learn about or be aware of the news To maintain contact with another person prevent something from increasing . To keep costs down to compare with something similar to give a clearer, more accurate idea. to behave well ; to not do anything bad. not fall asleep