Question

急急急急急急急急急急急急急急急！！！一道英语题解决一下，谢谢大家！！！

哪种出行方式更环保？请按最环保到最不环保的顺序排列。
bus,motorcycle,car,on foot,plane,train.
1.______ 2.___________ 3._________ 4.______________ 5.__________
6.____________ .
是：'bus,motorcycle,car,on foot,plane,train,bike.!!!!!'
1.______ 2.___________ 3._________ 4.______________ 5.__________
6.____________ 7.______________

Answer 1

on foot、buy bus

Answer 2

1 on foot, 2 bus 3,car 4,train.
5plane 6 motorcycle

Answer 3

1.on foot 2.motorcycle 3.bus 4.car 5.train.
6.,plane