27.Sales of CDs have greatly increased since the early 1990s, when people to enjoy the advantages of this new technology.
It is generally accepted that _____ boy must learn to stand up and fight like _____ man.
I think nobody makes _______ contributions to the company than him.
I have been living in the United States for twenty years, but seldom_______ so lonely as now.
Today’s teens don’t see anything strange in the fact _______the computer takes up a central place in their social lives.
I _______to go shopping that Saturday, but the bad weather made me change my mind.