I'm taking a test and have to guess the right answer to the question after the article. Article: Students often want to practice their English outside class. One of the best ways to practice your English is to speak to a foreigner. You may ask, "Is it okay to try to talk to foreigners I see in the street?" The answer is yes and no, but probably no! If you see a foreigner who looks lost, it is polite to ask him, "May I help you?" But, otherwise, you should probably let them get on with their business. Situations, however, do exist where it is quite all right to talk to foreigners. If a foreigner enters your school, classroom, office, shop or restaurant, for instance, feel free to ask him (for example): -- What is your name? -- Where do you come from? -- What do you think of Beijing? -- How long will you stay in Beijing? There are also situations where it's okay to talk to foreigners in public places. If you see a foreigner alone in a restaurant, bar or coffee shop, it may be appropriate to ask him or her: -- Is this seat free? -- Do you mind if I talk to you in English? You can probably help them if they are new in China and if they are alone, you may be able to make them feel more welcome. After a few such questions, you should know whether this person wants to talk to you or not. If they ask you similar questions, or if they give long, informative answers, you're in luck. If not, then give them their privacy. Talking to strangers is fun if you choose the right time and place. Question: This passage probably comes from a newspaper in column _ . Options: A: Sports B: Health C: Language D: Business
C

I'm taking a test and have to guess the right answer to the question after the article. Article: Invented in Turkey and patented by Nanopool, a German company, the spray-on liquid glass might become one of the most useful inventions in the field of nanotechnology. The product was tested at the Saarbrucken Institute for New Materials. It is worth mentioning that the invention is transparent and non-poisonous. The liquid glass can protect any type of surface from damages caused by water, UV radiation, dirt, heat, and bacterial infections. Besides, it is flexible and breathable, which means that the liquid glass can be applied on plants and seeds as well. Researchers found that the spray greatly increases the resistance of plants to bacteria-caused diseases. The trials also showed that the sprayed seeds grew faster. Depending on the type of surface that is to be covered, researchers can add water or ethanol to the spray. Scientists say that _ . The spray produces a coating that is just 100nm thick. Trials by food processing plants in Germany have concluded that foods covered with the glass can store longer than those stored in normal condition. According to Neil McClelland, UK project manager with Nanopool, due to its capabilities, the spray-on liquid glass can become one of the most useful inventions around the world, ending up being used by a lot of industries that will cover their products. At present, the invention is being used by a train company and a hotel chain in the UK, as well as a hamburger chain in Germany that are carrying out tests of the liquid glass for various uses. The spray-on liquid glass was also tested in a Lancashire hospital, where it showed "very promising" results, being used to cover medical equipment and bandages. The invention could be also used on clothing, because it cannot be seen by the naked eye, thus clothes could become stain resistant. Due to its unique characteristics, the liquid glass can be used to cover bathrooms, sinks and many other surfaces in the home. According to the researchers, the spay-on glass can last for a year. It is expected to hit the DIY stores... Question: According to Neil McClelland, the spray-on liquid glass _ . Options: A: are being tested by some industries B: are being used by various companies C: can be eaten together with hamburgers D: are widely used by train companies
A

I'm taking a test and have to guess the right answer to the question after the article. Article: Driving home from work one evening in the heavy rain, I found a very wet, injured cat on the side of the road. He looked up at me, meowing pitifully. A car must have hit it so it wasn't able to move. I stopped my car and carried the cat in and went on driving. At the nearest vet clinic, the vet gently examined it. "He's about eight months old and has two broken legs, but I would need X-rays to know how serious the damage is," he told me. "As he's not your cat, I don't know if you want to go ahead with this. It could be rather expensive." I knew it would cost me hundreds of dollars, but I agreed with his advice. The following morning the vet rang to say the X-rays confirmed two bad breaks in his legs. "I'll operate on his legs and put metal pins in them to keep them fixed." he told me. That afternoon I went to pick up my little friend. There I could hardly recognize him. His previously dirty fur was now a beautiful silver grey. His front legs were in two casts and he lay there looking at me, purring happily. I thanked the doctor and went out to pay the bill. "I think you've given me the wrong account," I said to the clerk. "This is only $85. He's had X-rays and an operation on his legs." "No, that's right," she replied. "The vet has only charged you for the medication. There's a message on the bottom." Written under the total were the words "SPECIAL RATE FOR ADOPTIONS." I was speechless at his kind and generous gesture. I paid the account and under his message I wrote "WITH GRATEFUL THANKS, CAT AND MUM." Question: Why didn't the vet give the cat X-rays immediately? Options: A: The damage was not serious at all. B: The cat was too young to be X-rayed. C: The doctor wasn't sure whether the author would like to cover the expenses. D: The examination was too expensive for the author to afford.
C