1.   At the same time, coping with the complexity of cultural rules presents a real challenge.

2.   Drake was the only team that offered a real challenge, and Oregon lost that game.

3.   For example, Frankfurt could pose a real challenge to London as a financial centre for the futures Markets.

4.   Her new job provided a real challenge.

5.   I think it will be a real challenge....

6.   In grade school, Clint was a real challenge to all of his teachers.

7.   Of course, the coal industry faces real challenges - environmentally, for instance.

8.   On Monday, Sharapova faced her first real challenge of the tournament.

9.   Teachers can be made aware of the real challenges that visually handicapped pupils have to face.

10.   The real challenge will be to attract an audience and advertisers against formidable rivals.