Read the following article and select the best answer. Article: Johnny the Explorer Johnny was three when he ran away from home for the first time.Somebody left the garden gate open.Johnny wandered out,crossed some fields and,two hours later,arrived in the next village.He was just able to give his name and address. By the time be was seven,Johnny used to disappear from home two to three times a year.Sometimes he covered quite long distances on foot.Sometimes he got on a bus or even a train,and simply sat there until someone asked for his ticket.Generally the police brought him home."Why do you do it?"they used to ask."I just like seeing places,"Johnny told them. Johnny continued to "see places"although everyone tried to stop him.His parents used to watch him closely,and so did his teachers;but sooner or later Johnny managed to slip away.As he grew older,his favorite trick was to hide on a long distance truck.Sometimes he trayelled hundreds of miles before anyone discovered him. It is hardly surprising that eventually Johnny managed to board a plane.He was twelve at the time.It was a cargo plane and a few hours later,Johnny found himself in Cairo.How did he get on board? No one knows! According to Johnny himself,it was easy:he just went into the airport,walked along some passages and got on board the nearest plane. In spite of all this,Johnny did well at school.He enjoyed mathematics and languages and,perhaps not surprisingly,he was especially good at geography."What do you want to be when you grow up?" his teachers asked him."An explorer!" he answered."But it,s difficult to become an explorer in this modern age,"they tried to tell him.But it was no use:Johnny knew what he wanted! Just before he left school,Johnny saw a notice in a daily paper.A long journey was about to go to Brazil to travel up the Amazon River.There were jobs for three young people"willing to work hard and with a sense of adventure".Johnny applied,and two months later,he was on his way to Brazil. Question: Johnny frequently left home because - he preferred to stay alone - he enjoyed seeing new places - he couldn't do well at school - he didn't get along well with his parents
he enjoyed seeing new places

Read the following article and select the best answer. 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: The writer's attitude towards the application of the new liquid glass is _ . - pessimistic - doubtful - cautious - optimistic
optimistic

Read the following article and select the best answer. 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: What do we know about the author? - The author was a caring and generous lady. - The author often adopted animals. - The author's workplace was far from home. - The author only worked at night.
The author was a caring and generous lady.