to do something while waiting
делать что-то, ожидая (delat' chto-to, ozhidaya)
"We played cards to kill time before the show started."
"Мы играли в карты, чтобы убить время, пока не началось шоу." (my igrali v karty, chtoby ubit' vremya, poka ne nachalos' shou)
A true friend is invaluable and precious.
feeling extremely happy or successful
to be very close and spend a lot of time together
feeling unhappy or irritable
the situation is improving
to prepare energetically for something