Объясните , в чём разница например между: fred is buying a ticket и fred buys a ticket?

when i was a kid, my father and my mother bought me a two- wheeled bike - a real, green color, with black wheels. he at once i really liked. at first i rode on it with small wheels on the rear wheel, not to fall, but it slowly, and i all were. a year later, in the following summer, dad took off wheels and taught me to ride on two wheels. however many times i fell, yet learned on the bike to keep the balance, but now i know how to drive fast and even steer one hand. now i quietly 'm getting ahead of the pope, when he runs away from me. i can for 30 seconds to circle around the ice palace. in the past year i 'm on my bike took part in the competitions at the city stadium, and took the second place among the boys. i even the instrument was given a prize. but in general, i summer love for the fact that in the summer, you can ride a bike. we with the guys from our yard going often to race around the ice palace. and still i like to ride a bicycle through the puddles. i love my bike and i can ride on it though the entire day. of all the toys i most of all i love my bike.

1)we recommend that you read the rules for the tourists.

2)   for a ride abroad in most countries you need a visa.

3) each tourist must fill out a customs declaration.

4) if you have any questions about what is necessary specify in the declaration, you should seek the assistance of customs officers ..

5) if you have any problems, you should contact your travel agent.