Air travel has three advantage over train travel．First, it

1．_________

can save much time．We can fly from one place to other

2．_________

in a long time, but by train we have to spend more time．

3．_________

Second, air travel is more comfortable because of the plane

4．_________

flies so smoothly which we can rest well during the trip．

5．_________

Third, the train is crowded sometime and passengers

6．_________

have to sit a long time, which makes them tiring．But train

7．_________

travel also has its own advantages．For example, traveling

8．_________

by the train costs only a little money．Besides, through

9．_________

the train’s windows, we can enjoy the view out windows．

10．_________