I bought a dress for only 10 dollars in a sale; it was a real _________. 

I was awfully tired when I got home from work, but a half-hour nap ______ me.

Scientists have found no ________of life on Mars so far,though great efforts have made on the research.

One thousand dollars a month is not a fortune but would help cover my living _____ . 

 The managers of the two companies are holding talks in a light and lively______