Though bought several years ago, the computer is still in good ____. 

The advertisements in newspapers help to cut the _____ of making the newspaper.

The workers wouldn’t run the _______ in letting an unreliable person take charge of the factory. 

There is no _______ in persuading him to give up computer games.

It even leaves the scientists in _______what they should call the newly born creature, which looks half-human and half-animal.