Read the following article and select the best answer. Article: When it comes to problem solving, many of us have heard of the skills of the crow in Aesop's Fables (<<>> ). In the story, a thirsty crow comes across a bottle of water, but the water level is out of its reach. The bird then drops small stones into it until the water level rises enough for the bird to drink. "Oh, it's just a fable," you may think. After all, it's hard to imagine birds knowing about "problem solving". But new research has found that crows' brains may sometimes be better than those of 6-year-old children. In a recent experiment, US scientist Corina Logan and her team caught six crows to test them. There were two tubes of water, one wide and the other narrow . Each crow was given four stones, enough to help them get the water in the narrow tube, but not the wide one. Surprisingly, the crows dropped all or most of the stones into the narrower tube and got the food reward! They had found out the cause-and-effect relationship.Using such brains, crows are making their lives easier. For example, some crows in cities have learned to use road traffic for breaking nuts, National Geographic News reported. But how are their wits compared to humans'? Logan's team did another experiment, this time on both crows and children. Here, the crows and children had to choose between two sets of tubes. With the red set, when they dropped a stone into a wide tube, the water level raised in a connected narrow tube that contained food. The blue set of tubes, however, had no connection between them. So dropping a stone in the wide tube did not cause the water level to rise in the narrow tube. Children aged 7 to 10 were able to learn the rule. Children aged 4 to 6, however, failed. Five of the six crows failed the test. But Kitty, a 6-month-old crow, passed it. She put all or most of the stones into the red tube. So, could a bird be more clever than a kindergartner? Don't be too quick to say no. Question: What have Logan's team found out from their recent experiments? - Crows prefer to get their food reward from wider tubes. - Crows are able to understand or learn cause and effect relationships. - Crows can easily recognize the tubes with a food reward inside. - Some crows even make use of road traffic to help them break nuts.
Crows are able to understand or learn cause and effect relationships.

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Read the following article and select the best answer. Article: Imagine one day, the water taps in your house stop running. You have to buy water from shops. And still there isn't enough for everyone. Your mother has to save the family's shower water to do other things. Would you be able to stand that kind of life? Probably not. But _ 's what kids in Yemen are experiencing. Experts said Yemen is going to be the first country in the world to run out of water. According to a report, the capital, Sanaa, will run out of drinking water as early as 2025. Because of the shortage, the government often cuts the water supply. Hannan, an 18-year-old from Lahej, told the Times: "In a good week we'll have a water supply all week. But then the following week there will be water only for a day or two." Hannan said only rich people have enough water to use. They can buy water from the shops or from the water truck. Private companies own the trucks. They travel around the city every day to sell water - at very high prices. "A lot of people can't afford it," she said. The average person in Yemen uses 100 to 200 cubic meters of water per year. That is far below the international water poverty line of 1,000 cubic meters. The government is thinking of making use of seawater. But it will cost a lot and it may not happen soon enough to help the people of Yemen. Question: We can infer from the text that _ . - Sanaa will run out of water in 10 years - Hannan is a teenager from a rich family - the capital of Yemen is developing fast - private companies make a lot of money
(Answer)
private companies make a lot of money

Ques: Read the following article and select the best answer. Article: Phones make our lives easier. Usually they are a convenient type of technology to have around because they can help us communicate with all types of people for any reason whatsoever. As long as somebody else has a phone, you can contact them. This means you can keep in touch with friends and family, contact businesses, and generally communicate with people no matter where they are. Sometimes, however, phones can cause problems or be an annoyance. One phenomenon that is dreaded in the United States is telemarketing. Telemarketers call your phone in order to try and convince you to buy their products. They often start the conversation with a friendly voice or tone to try and convince you they can be trusted. Once most people realize they are talking to a telemarketer, they will end the conversation as quickly as possible. Some will be polite and make up an excuse to end the conversation. Others are less tactful and criticize the telemarketer, yell at them, or simply hang up the phone. Although most people don't buy things from telemarketers, a few people do, so telemarketers keep on calling. If you have a phone in America you most likely have received a call from a telemarketer. To avoid telemarketers some people buy new technology. "Caller ID" allows you to see the number that is calling your phone before you answer. If you do not recognize the name and number of a caller you can simply ignore the call. Unfortunately there usually is no way to tell if an unknown number is somebody important, but unknown, or a telemarketer. Even though technology can help some people eschew annoying telemarketers, they can't be avoided altogether. Question: What do telemarketers do? - Try and buy something from the people they call. - Fool people to buy products that don't exist. - They try and sell telephones to people in the United States. - Attempt to sell products to the people they call.
Ans: Attempt to sell products to the people they call.

Question: Read the following article and select the best answer. Article: Right is right. Right? Of course. But is left wrong? Well, the Romans used to think so. They thought left-handed people were mistakes of nature. Latin, the language of the Romans, had many words that expressed this view. Some words we use today still have this meaning. The Latin word "dexter" means "right". The English word "dexterous" comes from this word. It means "handy" (clever with hands). So, right is handy. But the Latin word for left is "sinister". The English word "sinister" comes from this word. Sinister means "evil" (very bad). Is it fair to call right-handed people handy and left-handed people evil? Well, fair or not, many languages have words that express such beliefs. In old English, the word for left means "weak". That isn't much of an improvement over "evil". Not very long ago, children were often forced to write with their right hands. Doctors have since found that this can be very harmful. You should use the hand you were born to use. People who use their left hands are just starting to get better treatment. But why they get all these bad names in the first place? One reason may be that there are not as many left-handed people as there are right-handed people. There is one left-handed person for every five right-handed ones. People who are different are often thought to be wrong. But attitudes do seem to be changing. Fair-minded right-handed people are finally starting to give left-handed people a hand. Question: After we read the article we can certainly know that _ . - left-handed people have been treated poorly - the number of the left-handed people is larger than that of right-handed people - right-handed people are much cleverer than left-handed people - left-handed people are less smart but hardworking
Answer:
left-handed people have been treated poorly