题目内容：

用词语造句,来就最佳
例：Beijing/Weihai/big(Beijing is bigger than Weihai
1.cycling/running/tiring
2.cars/bicycles/dangerous
3.cycling/football/relaxing

优质解答

1.Cycling is more tiring than running.
2.Cars are more dangerous than bicycles.
3.Cycling is more relaxing than football.