补全对话(阅读下列对话，将空白处补全，使对话通顺，首字母已给出)。

A：Excuse me．Can you help me? I' m l  1   for the post office．

B：S  2  , I'm new here．You may ask that policeman．

A：Excuse me．Which is the w  3   to the post office?

P：Go a  4   Red Star Road, and t  5   the second turning on the r  6  , go across the b  7    and walk on, then turn 1  8   at the second crossing．You'll find it at the e  9   of the road．It's next to the h  10  ．You can't miss it．

A：Thank you very much．

P： It's a pleasure．

The London Olympic Games are coming soon. This summer, Chinese sports fans will be able to watch the exciting games in 3-D on CCTV.
When you watch 3-D movies or TV, you have to wear a special pair of glasses. The 3-D glasses make the people and the things on the screen look like they are in the room with you.
3-D, means having three *dimensions: *width, height and *depth. 3-D technology is based on the way the human brain and eye work. Because the *pupils of a person’s eyes are about 6.5cm apart, when we look at something, each eye sees it from different *angle. Our eyes send the two pictures to our brain, and the brain puts them together. The small difference between the picture from the right eye and the picture from the left eye make us see depth.
While watching 2-D films, we don’t have to wear the special glasses. We see the pictures in two dimensions, each eye get the same information. This is because there is only one way of watching it.
So the aim of 3-D technology is to get a different picture into each eye of the person. It uses two film *projectors. One *projects a left eye picture and the other projects a right eye picture. When we are in the cinema, we can see different pictures in each eye at the same time with the help of the 3-D glasses.
While watching 3-D films, we feel that we are actually in the same environment as the things we are watching. However, some people are against watching 3-D films. One of the reasons is the 3-D glasses makes the screen of the film or TV look darker. It is bad for eyes. What’s more, people with eye problems may get headaches if they spend too much time watching 3-D movies, because their brains need to work harder to “read” the pictures.  
【小题1】Paragraph 3 mainly tells us __________.

The American expression “shoo-in” means someone or something that seems sure to win a race or competition.
Before a big football game, supporters of each are certain to argue about which side will win.
Sometimes, however, one team appears so much stronger than the others that everyone agrees it will win.. The stronger team is a shoo-in. There is no way that it can lose.
The expression “shoo-in” comes from horse racing. It comes from the world “shoo”. That is not the shoe we wear on our feet. It’s another word, S-H-O-O. To shoo is an expression hundreds of years old that means to force an animal to move in a desired direction.
Many years ago dishonest riders sometimes agreed secretly to control their horses so that one chosen horse would win the race. but one of the riders would hold back their horses. The chosen rider would shoo his horse ahead of the others, and win the race.
The other riders would secretly bet large amounts of money that the chosen horse would win. The public soon learned about such about such race. They began to call the winners of such a race a “shoo-in”
These days, people use shoo into describe any athlete or competition that seems certain to win, even without cheating.
American runner Edewin Moses won more than hundred races before he ran the hurdle race in the 1984 Olympic Games. Everyone said Moses was a shoo-in, and that he could not lost. And they were right. He won the gold medal.
阅读上面的短文，从每题所给的四个选项中，选出一个最佳答案
【小题1】One of the dishonest riders was sure to win the race because_______.