The endurance of female and male runners in competition makes (different) _______________. ______

The London Marathon is a difficult race.___ ___， thousands of runners participate every year.

I see the runners ________ on the playground. A: to train B: training C: train D: to be training

Many runners describe an amazing ______ peace that comes with long hours running alone and in silence.

The two runners reached the finish line almost ______; who came in first was indistinguishable to the naked eye.

Henry Fielding and his brother John found the Bow Street Runners in 1749, which is Londons first ______.

The leading group of three continue to__ the rest of the runners and were soon half a mile clear of them.

He overtook __( )_ runners on the last lap and won the first place. A: others B: other C: the other D: another

In the race he will ___against world-class runners, which is areal challenge to him. A: match B: compete C: game D: run

There are 800 runners in a marathon（马拉松）. The mean（平均的）running time is 4 hours exactly. Which of the following must be true? A: Half the runners take more than four hours. B: Most people take four hours. C: The total time taken is 3,200 hours. D: Everyone takes four hours.