Read the following article and select the best answer. Article: Many gardeners believe that "talking" to their plants helps them grow---it turns out that _ may not be crazy after all. According to the scientists from the University of Exeter, plants may keep communicating with each other through a secret "unseen" language. For their experiment, the scientists picked a cabbage plant that is known to send out a gas when its surface is cut. In order to get video evidence of the communication, they changed the cabbage gene by adding the protein---luciderase , which is what makes fireflies glow in the dark. When the changed cabbage plant was in full bloom, they cut a leaf off with a pair of scissors, and almost immediately, thanks to the luciderase, they could see the plant sending out "methyl jasmonate ". While this was a known fact, what was surprising was the fact that the minute this gas began to give out, the nearby cabbage plants seemed to sense some kind of danger and started to send out a gas that they normally have to keep predators like caterpillars away. What the scientists are not sure is whether the plants are trying to warn the other leaves or the near plants about the danger---something that will require further research However, the team, which is led by Professor Nick Smirnoff, is quite excited about the findings because this is the first time it has been proved that plants do not live a passive life, but actually move, sense and even communicate with each other. However, before you get all concerned, they are quite sure that plants do not feel the pain when they are cut, since they do not have nerves---so go ahead and bite into that juicy carrot! Question: What's the best title of the passage? - Plants Can Send Some Gas - Plants Can Communicate with Each Other - The "Unseen" Language of Plants - Plants Can't Feel Pain
The "Unseen" Language of Plants

Read the following article and select the best answer. Article: How often one hears children wishing they were grown-ups and old people wishing they were young again. Each age has its pleasures and its pains, and the happiest person is the one who enjoys what each age gives him without wasting his time in useless regrets. Childhood is a time when there are few _ to make life difficult. If a child has good parents, he is fed, looked after and loved, whatever he may do. It is impossible that he will ever again in his life be given so much without having to do anything in return. What's more, life is always presenting new things to the child -- things that have lost their interest for older people because they are too well-known. But a child has his parents. He is not so free to do what he wishes to do; he is continually being told not to do things or being punished for what he has done wrong. When the young man starts to earn his own living, he can no longer expect others to pay for his food, his clothes, and his room, but has to work if he wants to live comfortably. If he spends most of his time playing about in the way that he used to as a child, he will go hungry. And if he breaks the laws of society as he used to break the laws of his parents, he may go to prison. If, however, he works hard, keeps out of trouble and has good health, he can have the great happiness of building up for himself his own position in society. Question: Which of the following statements is NOT true according to the passage? - People are always satisfied with each part of their life. - Life is less interesting for old people. - Children are free to do what they want to do. - Adults should no longer rely on others.
People are always satisfied with each part of their life.

Q: Read the following article and select the best answer. Article: For the first time, researchers have discovered that some plants can kill insects in order to get additional nutrients. New research shows that they catch and kill small insects with their own sticky hairs near the roots and then absorb nutrients through their roots when the insects are killed and fall to the ground. Professor Mark Chase, of Kew and Queen Mary, University of London, said: "The cultivated tomatoes and potatoes still have the hairs. Tomatoes in particular are covered with these sticky hairs. They do trap small insects on a regular basis. They do kill insects." The number of these carnivorous plants is thought to have came up to 50 percent and many of them have until now been wrongly regarded as among the most harmless plants. Among them are species of petunia , some special tobacco plants and cabbages, some varieties of potatoes and tomatoes, etc. Researchers at Royal Botanical Gardens Kew, which carried out the study, now believe there are hundreds more killer plants than previously realized. It is thought that the technique was developed in the wild to get necessary nutrients in poor quality soil - and even various plants grown in your vegetable garden still have the ability. The researchers, publishing their finding in the Botanical Journal of the Linnean Society, said: "We may be surrounded by many more murderous plants than we think." "We are accustomed to thinking of plants as being immobile and harmless, and there is something deeply frightening about the thought of meat-eating plants," they added. Question: Tomatoes and potatoes kill insects to _ . - get more sticky hairs - make themselves grow better - make their roots stronger - avoid falling down to the ground
A: make themselves grow better

Q: Read the following article and select the best answer. Article: It does not have to be January 1st to give yourself a chance to make the most out of your day -- and your life. Every day is a new day and a fresh start to learn, grow, develop your strengths, heal yourself from past regrets or hurts, and move forward older and wiser. Every day gives you a chance to reinvent yourself, to fine-tune who you are, and build on lessons of what you have learned. It is never too late to change things that are not working in your life and switch gears, instead of thinking in the same old ways, hoping for a different outcome. Be intelligent, be flexible, and keep and open mind to start each day anew! Flexibility is the key! Ask yourself: How do you wake up each day? Do you start your day going already feeling pressured and rushed? Do you go through the morning routine without much thought at all, doing what you "have to do" to start your day? How about starting each new day with a moment to stop, breathe and think of a positive intention for the day. Think not just what you want to DO, but how you want to BE today? Each day is a new beginning and a blank slate. How would you like to create your day? Think of it as a blank canvas -- what would you like to paint on it. What can you create? If you wake up in a negative mindset, you are more likely to paint a dark picture throughout the day, and your canvas will not reflect hope, happiness and joy. If you take each day to think positively, and have a positive intention for how you would like to create your day, how would your life be different? What positive outcome can reflect your positive intention? What can daily positive intentions do for you? Every day you will give yourself the gift of an "attitude of gratitude." Visualizing how you would like your day will help release positive energy from within you and you will attract more positive energy from those around you. Instead of spinning your wheels in an old way of thinking, each day is a chance to reframe and re-look at things in a different way. You can experience each day an awe ... Question: According to the writer, which is the most important? - changeable - positive - forgettable - active
A: changeable