八年级英语书40面第9题
问题描述：
八年级英语书40面第9题
人教版 上册的
答
1.书上有了.2.Bikes are cheaper than buses.3.Cars are safer than bikes .4.Cars are safer than buses .5.Cars are faster than bikes.6.Cars are faster than buses.7.Buses are also dirtier and more crowed ....