I'm taking a test and have to guess the right answer to the question after the article. Article: A camera and a computer can "see" something that perhaps millions of pairs of eyes failed to see for 480 years: the Mona Lisa's necklace. The discovery about the famous painting was made by an American physicist. The Mona Lisa, painted by the Italian, Leonardo da Vinci, has been on show for many years in Paris. Now a row of white spots on the neck have been "seen". They are said to be the remains of a necklace which the artist later painted over. The painting will be examined further by using infrared scanning techniques. Laser technology can be used to show what lies directly under the surface of the finished work, too. This will help us to understand how the artist drew the picture: Did he begin with a quick-made drawing or have second thoughts as he painted the picture? This kind of knowledge will show us the famous artist at work. It may also help to explain Mona Lisa's smile, which has puzzled art lovers for centuries. Question: The painting will be examined further so that people may know more about _ . Options: A: Mona Lisa and her smile B: the time when it was finished C: infrared scanning and laser D: this art work and the artist
D

I'm taking a test and have to guess the right answer to the question after the article. Article: Different countries and different people have different manners. We must find out their customs, so that they will not think us ill-mannered. Here are some examples of the things that a well-mannered person does or does not do. If you visit a Chinese family you should knock at the door first. When the door opens, you'll not move before the host says "Come in, please." After you enter the room, you wouldn't sit down until the host asks you to take a seat. When a cup of tea is put on a tea-table before you or sent to your hand, you'll say "Thank you" and receive it with your two hands, not one hand, or they'll think you are ill-mannered. Before entering a house in Japan, it is good manners to take off your shoes.In European countries, even though shoes sometimes become very dirty, this is not done.In a Malay house, a guest never finishes the food on the table. He leaves a little to show that he has had enough. In England, a guest always finishes a drink or the food to show that he has enjoyed it. This will make the host, especially the hostess pleased. Question: In a Malay house, a guest leaves a little food to show that _ . Options: A: he has enjoyed it B: he needs some drink C: he is not hungry at all D: he can't have any more
D

I'm taking a test and have to guess the right answer to the question after the article. 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: When the plant sent out methyl jasmonate, which of the following statements is NOT TRUE? Options: A: The nearby cabbage plants seemed to sense some kind of danger. B: The nearby cabbage plants started to send out a gas. C: The nearby cabbage plants tried to warn the near plants. D: The nearby cabbage plants communicated through a secret language.
C