阅读下面短文，从短文后所给的A、B、C三个选项中选出能填入相应空白处的最佳选项。

Many people love going on a trip 1 plane, but an airport is usually far from the city. You have to arrive there and 2 for hours for the plane to3 off and it is often late. You can't 4the windows, and you can't choose the food. 5 planes are fast, it takes hours to get out of the airport and into the city.

I like travelling by6I think trains are the safest. Train stations are usually in   7 . When you are late for a train, you can catch 8 one. You can walk around in the train and look out of the windows. You can see many interesting things on 9way. I know it takes a little 10 time.