input: OPTIONS:
- to tell you what to do if your bicycle is stolen
- to suggest ways of keeping your bicycle safe
- to give you advice on where to buy a good lock
- to say why you shouldn't keep your bicycle in a quiet place Now, answer this question: Read the following article and answer the question. Article: Su Hua is studying at Cambridge, UK. She has bought a bicycle and is worried about security. Her friend, Kate, found this article and sent it to her. www.zxxk.com Introduction A lot of crime is against bicycles. About 150,000 bicycles are stolen every year and most are never found. You can prevent this happening by following a few careful steps. Basic Security Do not leave your bicycle in out-of-the-way places. Always lock your bicycle when you leave. Secure it to lampposts or trees. Take off smaller parts and take them with you, for example lights and saddles . Locks Get a good lock. There are many different types in the shop. Buy one that has been tested against attack. Ask for a recommendation from a bike shop. Marking Security marking your bike can act as a deterrent to a thief. It can also help the police find your bicycle. It should be clearly written and include your postcode and your house or flat number. This will provide a simple way to identify your bicycle. Registration There are a number of companies who will mark your bicycle for you. They will then put your registration number and personal details on their computer database. Then if your bicycle is found it will be easy to contact you. Finally Keep a record of the bicycle yourself: its make, model and registration number. You can even take a photograph of it, this will prove the bicycle belongs to you. Question: The main purpose of this article is _ . Answer:
A:
output: to suggest ways of keeping your bicycle safe

Read the following article and answer the question. Article: People in cities all over the world shop in supermarkets. When you enter the supermarket, you see shelves full of food. You walk in the aisles, pushing your shopping cart. You probably hear soft, slow music in the supermarket. This kind of music is playing to relax you and make you walk slowly. Thus, you will probably stay longer and buy more food. Where do you go in the supermarket when you first arrive? Many people go to the meat section first. This area of the store has many different kinds of meat. Some kinds are expensive and others are not. Usually, some kinds of meat are on sale. So it has a special low price. The manager of the store knows where the customers usually enter the meat section. The meat on sale is usually at the other end of the section, away from where the customers enter. If you want to buy this specially priced meat, you have to walk by the more expensive meat first. Maybe you will see something that you want to buy before you reach the cheaper, inexpensive meat. Then you will spend more money in the meat section. The diary section sells milk that is low in fat. Some supermarkets sell three different containers of low-fat milk. Each container looks different, but each contains the same product. One says "1% fat", one says "99% fat free" and one says "low-fat" in big letters and "1%"in very small letters. If you look carefully you can see that all the milk has the same amount of fat, and each container is the same size. The prices of all these three should be the same. However, in many stores these three containers of milk would each have a different price. The store will make more money if a customer chooses the milk that costs the most. Most of the food in supermarkets is very attractive. People often stop to look at the products in attractive containers. But remember, many products will say, "Buy me!". Stop and think which ones are the best value for your money. Question: The three different kinds of low-fat milk _ . Answer:

OPTIONS:
- contain three different amount of milk
- contain three different kinds of milk
- each have the same amount of fat
- are all the same price

Answer: each have the same amount of fat

Problem: OPTIONS:
- 1850 and today
- 100 and the year 1400
- 100 and the year 1600
- 1 and the year 100
Q: Read the following article and answer the question. Article: It is believed that it took about 800 thousand to 1 million years for the earth's population to reach the 250 million total which existed at the end of the first century AD. For some time after that, disease, famine and war kept the population increase down to a rate of 1 percent a year so that more than 15 centuries passed before the population reached 500 million. But in the next 250 years, up to 1850, the population of the world shot to 1 billion and today it has reached 3.5 billion. Scientists say that in the next 35 years the population of the world will double, reaching almost 7 billion by the year 2010. When experts are asked what are the most effective measures that can stop over population, they reply that at least three measures can be considered. (A) Increasing sources and supply of food for under-developed countries. (B) Increasing the industrialization of under- developed countries. (C) Controlling birth. The experts add, however, that none of the above measures can be effective by itself, and that all must be combined into one whole program. They also agree that without controlling of births, any other measures are doomed to failure. Question: The population of the world doubled between the year _ . Answer:
Answer: 100 and the year 1600

Read the following article and answer the question. Article: City buses are white and blue. Please board at the front door and pay the fare as you get on. The fare per ride is $1.50 for adults and $1.00 for senior citizens. The fare may be paid by cash, bus pass or multiple passes. Please pay the exact amount directly into the slot at the top of the fare box. Remember that bills are not accepted and drivers cannot make change for riders. When you wish to get off the bus, please notify the driver in advance by pressing one of the buttons provided throughout the bus for this purpose. The bus may pass bus stops without stopping if no one is getting off or waiting to get on. There are five subway lines in the city. The fare is set at five rates from $2.00 to $3.50 according to the number of predetermined "price zones" traveled. To purchase the appropriate ticket, please check the fare on the boards installed above the ticket-selling machines in each subway station. Pass through the automated ticket gates by inserting the ticket into the slot. When getting off the subway at a station beyond the validity of the ticket, pay the additional fare at a fare-adjustment machine. Question: How can a rider determine the fare of a subway ride? Answer:
OPTIONS:
- It is automatically determined.
- It is always $2.00
- Fare-adjustment machines determine the fare.
- All fares are posted.

Answer:
All fares are posted.