Read the following article and select the best answer. Article: "Your son is one of the sickest kids we've ever had in intensive care," was what the nurse said to me after we had arrived in an ambulance, 20 minutes from Kingston Hospital to the Evelina in Westminster. The journey was the longest of my life. I had been told that my six-month-old son, my friend, my whole heart, was going to die. And I spent the whole time in the blue-lit vehicle wondering how on earth I would lift my wife from the black hole she was about to be plunged into. The nurse who gave me that bad news was to become a great friend. She told me that the noise my son was making in the back of the ambulance was the sound that babies made before they died. There were many more horrible words and terms. But my son survived. It wasn't just George who endured. In the three weeks of his hospital stay, I slept 20 hours in total. My wife hardly slept. I lost over two stone in weight in the five days he was in intensive care. And we've been treating him for three years now. I have collapsed 20 times--the fear, the anxiety and exhaustion. Even now, we wake at least five times a night, often staying awake to treat him for as long as an hour. My son has Type 1 diabetes . It's a little known condition. George had a simple, everyday virus. It caused his immune system to attack his pancreas. Now he needs constant insulin to stay alive. I wanted to raise awareness for George's condition. I wondered how I could do it. I've run a couple of marathons. But a marathon was never really going to get people's attention the way I hoped. Two marathons, back to back? Maybe three? Could I do it? How much could I endure? I started running at the age of 19 when I thought my heart was broken. I couldn't cope with the pain and I went for a run. I kept on going for a run. Each time I came back, it would hurt a bit less. It wasn't so long before I had completely forgotten about my broken heart. But I couldn't stop running. I found that any stress, frustration, anxiety would reduce when I went out on the road. When we finally... Question: The writer says he has collapsed 20 times because . - long distances of marathon made him worn out - he has to stay awake every night to care for his son - treating a sick son needs great efforts physically and mentally - his son's condition is becoming more and more serious than expected
treating a sick son needs great efforts physically and mentally

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Read the following article and select the best answer. Article: Microwaves may be great at warming up food, but what about warming people? Using microwaves to directly heat owners of a room would save much of the energy wasted by heating walls and furniture. And despite popular ideas about microwaves, this technique would be safe, according to Charles R. Burlier of the Microwave Research Center in Marlborough, New Hampshire. Low-power microwaves only penetrate the skin (low-power microwave penetration in a ham is about 0.2 inches, for example) and with no negative effects. To test this idea, Buffler subjected himself to microwaves in a special room using a standard 500-watt, 2459 MHz magnetron . He found that a person will start to feel warmth at about 20 milliwatts per square centimeter (mw. / sq. cm. ) ; a satisfactory feeling of warmth occurs between 35 and 50mw. / sq. cm. By comparison, a person standing in noonday summer sun feels the amount of 85 mw. / sq. cm. And a frozen meat pie in your microwave oven receives about 1000 mw. / sq. cm. In houses of the future, each room could be provided with its own magnetron, says Buffler. When you stepped into the living room, for example, a motion detector would turn on the magnetron, filling the room with low-power microwaves. In the same way that a microwave oven heats up a hamburger, but not the plate it's on, you would feel warmth from the microwaves without changing the temperature of your coffee table. (You could, however, make your favorite easy chair even more comfortable by treating it with a radiation-absorbing chemical.) While it might be some time before homeowners are comfortable enough with the idea to set up whole-body microwave heaters in houses, Buffler says microwaves may attract livestock farmers. Lambs that are born outdoors in winter, for example, are frequently lost to cold. Microwaves could warm the lambs safely and quickly. Question: Which of the following can tell the main idea of the passage? - A new heating system. - A new microwave oven. - A popular technique. - The magnetron.
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A new heating system.

Read the following article and select the best answer. Article: Kristy,28,a cook in La Gross, often wondered what she'd do in a life threatening situation. On August 29, she got her answer. While she was driving on a road,a big truck hit its head on a pickup car. _ .Kristy rushed out and ran to the pickup.Two farmers,Dean Bernhard,51, and his brother,Donald,44,were inside. When she got close,Kristy could see the unconscious driver.The other man was under the passenger seat. "The smells were sicking.I was afraid the truck would blow up and kill us all," said kristy. The driver of the big truck was struggling to open the passenger door,so Kristy rushed to the driver's side.Finally they opened the door.She reached in,seized the driver and, to her horror,felt her hands sink into his chest.She quickly dragged the man to safety on the roadside,then hurried back.As Kristy started down the ditch with the passenger,the pickup exploded..She jumped on top of him and they both rolled to safety. Today,the two farmers,each the farmer of two children,are good friends with Kristy.To show their deep appreciation,they bought her a ring with nine diamonds---one for each member of their immediate families,and the ninth for her. Question: When coming to save Donald and Dean Bernhard,Kristy never thought that she _ . - could have any help from others - would be successful in saving both of them - might be killed - would be tested in dangerous situations
would be tested in dangerous situations