Life is tough in the city.In order to lose their _________,some people drink alcohol.

The invention of the typewriter was a great_______  to communication and printing.

Before the final examination, many students have shown ______of tension. Some have trouble in sleeping while others have lost their appetite.

. After so many days on the way, even Charles cheered up at the _____ of the food.

The faces of four famous American presidents on Mount Rushmore can be seen from a ____ of 60 miles.