A:What do you think is the best way of travelling is?
B:I think aeroplane is by far the best way.
A:Why do you think so?
B:Because it is the fastest and the safest.
A:Of course it is when you are talking about a long distance.
B:That's true.For shorter distance I think I will have to say,car.
A:And why is that?
B:Well,it is quite obvious that you will not find an airport everywhere,but a carparking space is a lot more easier to find.
A:What about bicycles then?
B:Eh...I don't think so.The area I live in is in the mountains.It takes a strong sport-man to ride on those hilly roads.