He made up his mind to enjoy his guitar and to accumulate as many happy experiences as he could so that when he retired he wound be able to ______his life with satisfaction.
While enjoying himself in the amusement theme park, he heard a loud cry of pain; he _____ himself around and ______ to see a girl had fallen off the swing and was crying for help.
The invention of the chip greatly _______ the development of computer science; ______ the computer science stepped on the freeway of rapid development.