Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: Researchers at Sweden's KTH Royal Institute of Technology say they have found further proof that the wolf ancestors of today's dogs can be from southern East Asia -- findings that are contrary to theories placing the birth place in the Middle East. Dr Peter Savolainen, KTH researcher in evolutionary genetics, says a new study released Nov. 23 confirms that an Asian region south of the Yangtze River was the principal and probably the only region where wolves were domesticated by humans. Research data show clearly that dogs are descended from wolves, but there's never been scientific agreement on where in the world the domestication process began. "Our analysis of Y-chromosomal DNA now confirms that wolves were first domesticated in Asia south of Yangtze River -- we call it the ASY region -- in southern China or Southeast Asia," Savolainen says. The Y data supports previous evidence from mitochondrial DNA. "Taken together, the two studies provide very strong evidence that dogs appeared first in the ASY region," Savolainen says. Archaeological data and a genetic study recently published in Nature suggest that dogs originate from the Middle East. But Savolainen rejects that view. "Because none of these studies included samples from the ASY region, evidence from ASY has been overlooked," he says. Peter Savolainen and PhD student Mattias Oskarsson worked with Chinese colleagues to analyse DNA from male dogs around the world. Their study was published in the scientific journal Heredity. Approximately half of the gene pool was universally shared everywhere in the world, while only the ASY region had the entire range of genetic diversity. "This shows that gene pools in all other regions of the world most probably originate from the ASY region," Savolainen says. "Our results confirm that Asia south of the Yangtze River was the most important -- and probably the only -- region for wolf domestication, and that a large number of wolves were domesticated," says Savolainen. In separate research published recently in Ecology... Options: A It is only used in studying evolutionary relationships. B It alone can provide hard evidence for Savolainen's research. C It is the most useful in finding out the birth place of dogs. D It comes from the mother of most animals and plants. Answer: D It comes from the mother of most animals and plants. Question:

A: What is special about mitochondrial DNA?

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Reading is a great way to improve your English. You'll learn new words, revise previously-taught structures and absorb thousands of useful expressions and phrases... without any effort. By reading, you are receiving valuable language input. And this is how you learn! Remember, language learning is a combination of input + practice. As you're reading, you're taking in language naturally, and you're seeing how it all fits together. This is _ to your learning. The great thing about reading is that learning takes place subconsciously. There are no exercises to do, no grammar rules to learn, no tasks to complete... it's all natural. The language flows in through your eyes, and gets recorded in your brain. What could be easier? The key to effective reading is to read things that you want to read. There are millions of books, magazines and websites out there. You couldn't possibly read them all. So, the important thing is to find things that you like reading. Then, you'll be motivated to read. And then the reading won't be difficult. It'll be easy! And then you'll learn. It's simple. Remember: read what you want to read. What you like reading. What motivates and inspires you. But where can you start? Well, you could read a book that you've already read in your own language. Simply find a translated version of a book that you have read and enjoyed. This will make processing the content in the target language much easier as you'll already know what the book is about! You could also read the news. This is great as you can read the news in your own language first, then in English. You'll see that it won't be too difficult as you'll be familiar with the topics and stories. Magazines are also great. Find one that covers a topic you're interested in: business, clothing, guns, horses, houses, housekeeping, stocks and shares, sports, computers, electronics, designing, cooking... you name it, they'll have it. If not, look for information on the internet. There are also websites for every topic under the sun! Why not join a... Options: A reading a book that you've already read in English B reading the news in English first C going to Google Groups to practice spoken English D reading magazines containing topics you are interested in Answer: D reading magazines containing topics you are interested in Question:
++++++++++++++++++++++++++++++++
The answer is:
You can start to read by _ .

[Q]: Write a multi-choice question for the following article, with the given choices and answer: Article: Humans have long been interested greatly in the idea of being able to walk on water. Sadly, biological facts prevent us ever realizing this dream without artificial aid--we simply weigh too much, and all our weight pushes down through our relatively small feet, resulting in a lot of pressure that makes us sink. However, several types of animals can walk on water. One of the most interesting is the common basilisk Basilicus basilicus, a lizard native to Central and South America. It can run across water for a distance of several meters, avoiding getting wet by rapidly hitting the water's surface with its feet. The lizard will reach a speed of 20 steps per second to keep moving forward. For humans, we would need huge feet that we could bring up to our ears in order to create enough "hitting". But fortunately there is an alternative: cornflour . By adding enough of this common thickening agent to water (and it does take a lot), you can create a special mixture that doesn't behave like normal water. Now, if the surface of the water is hit hard enough, particles in the water get together for a moment to make the surface hard. Move quickly enough and put enough force into each step, and you really can walk across the surface of this adequately thick liquid of cornflour. Fun though all this may sound, it's still rather messy and better read about in theory than carried out in practice. If you must do it, then keep the water wings ready in case you start to sink--and take a bath afterward! Options: A are not interested in it B are afraid to make an attempt C have not invented proper tools D have biological limitations Answer: D have biological limitations Question:
****
[A]:
Walking on water hasn't become a reality mainly because humans _ .