Johnson is an honest businessman. Our company and his have had a lot of ______ in the past few years.

Due to the violent nuclear leakage, the _____ of the electricity supplies put Japan’s northeastern cities in a sate of chaos.

Jim is fond of his present job. He must get a real ________ out of his work.

 We have to keep       with the changing times.

When a difficulty is beyond my _____, I turn to my classmates or teachers for help.