1.   In many countries, queuing for a bus is an alien concept.

2.   Paved roads and mail deliveries are alien concepts.

3.   The idea of keeping appointments was an alien concept.

4.   With a shrug, he shrugged off alien concepts such as responsibility, maturity, ambition and commitment.

5.   Although hype is an alien concept to unassuming highlanders, McSporran is adjusting to the promotional realities of his new job.

6.   Although Roswell for decades distanced itself from spacey sorts, today its UFO fame is no longer an alien concept.

7.   As a result free trade was long viewed as an alien concept in Canada, where people grew up believing in the virtues of collectivism and government protection.

8.   But in other countries this form of charity is an alien concept, he said.

9.   Customer service seems to be an alien concept at long-distance phone companies these days, with MCI Worldcom the latest offender.

10.   Flora, to whom work is an alien concept, intends to become a novelist in later life and expects to soak up life experiences until that time.