Read the following article and select the best answer. Article: Sir John a British scientist who won last year's Nobel prize for medicine, said he had predicted at the time of his frog experiments that the successful cloning of a mammal would happen within 50 years.and that "maybe the same answer is appropriate" far the step to human cloning. Parents who lose children in accidents may be able to clone "copies" to replace them then. Although any attempt to clone an entire human would raise complex moral issues, the biologist claimed people would soon overcome their concerns if the technique became medically useful.Cloning was regarded with extreme doubts when it was first developed but became widely accepted after the birth of Louise Brown, the first "test tube baby" He said, "When my first frog experiment.s were done, an American reporter asked how long it will be before these things can he done in mammals or humans I said, 'Well, it could be anywhere between 10 years and 100 years-how about 50 year ?' It turned out that it wasn't far off the mark as far as Dolly was concerned.Maybe the same answer is appropriate." Sir John added that cloning a human being effectively means making an identical twin, and doctors would therefore simply be "copying what nature has already produced" The average vote on allowing parents of deceased children, who are no longer fertile , to create another using the mother's eggs and skin cells from the first child, thinking the technique was safe and effective, is 60 per cent in favor.The reasons for "no" are usually that the new child would feel they were some sort of a replacement for something. . Question: Sir John predicted the human cloning would be a reality in _ at most. - 100 yea - 60 years - 50 years - 10 years
50 years

Read the following article and select the best answer. Article: Long after its introduction into the New World, American English was still considered non-standard English. According to some people of the 1780s American English was a peasant's language that a "gentleman" will not speak. Considered in a bilingual point of view, British English was the dominant language linked to prestige and language purism . The belief in the authority or say in the superior of British English, has remained to the twentieth century, especially in the former British Empire or in the fields of British influence. Thus, it is reported that in prefix = st1 /China, teachers and school textbooks refer to and recommend Received Pronunciation as the model, as well as standard British sentence structures, spelling and words. British English is also encouraged and accepted as the criteria of some major official examinations, for example, College English Test and Test for English Majors which are conducted by government. Similar situations could be found in countries, for example, in Africa, the West African Examination Council and Joint Admission accepts the British English as the standard English. Report can also be found that inCairosome university students received lower grades if they used American spellings instead of British English. In Europe, we find teachers, British people as well as natives of the country in which they work, who follow the British English standard, and laugh at the American English. However, the above attitudes are nothing but the last influence of a long-gone period of British supermacy . The beginning of a clear lead of American English can be traced to the decades after World War II. This coincides with the simultaneous rise of the US as a military and technological power and the decline of the British Empire, which drove many to American English. And from then on, American English has continuously sent its influence to every corner of the planet. Question: The main idea of the passage is_. - there are big differences between American English and British English - how American English developed into standard English in the end - people began to admit American English as standard as British English - American English is having advantage over British English.
American English is having advantage over British English.

Q: Read the following article and select the best answer. Article: If you have ever been rock climbing, you will know that it is not a very easy sport. In fact, you probably felt quite defeated when you first tried to do any serious climbing. Indoor and outdoor rock climbing are both extremely demanding and require practice to get good at. It is one of the most physically and mentally demanding sports. There are three basic types of rock climbing. Top roping is the most common type and the climber need to climb with a partner. The second type, which is very similar to top roping, is called lead climbing. In both of the types, the climber can sit off the wall and rest on the rope. The third type is called bouldering. Bouldering is a type of free climbing without any ropes. This is the most demanding of all climbing types. The climber must be able to complete the climbing without taking a rest on the rope. Believe it or not, climbing is said to be about 75% legs and only 25% arms. To climb efficiently and successfully, a person needs to have a wonderful technique. One of the major rules of rock climbing is to always have three points touching the wall, whether it is both feet and one hand, or one foot and both hands, as it is much easier to have your weight cases will not do the climbing; they only hold you into the wall so that your legs are actually pushing you upward. Also, the closer you are to the wall, the easier it is to climb. Rock climbing may sound a bit too extreme for the everyday person, but it is really an amazing workout. Once you get into the sport, and learn how to position your body and rest your weight, then you can begin to deal with some difficult problems. The great thing about rock climbing is that it is mentally challenging as well. You are constantly analyzing the way your body moves and how to do certain moves on the wall. For anyone who wants to get into shape, rock climbing is a fun and effective way to exercise muscles. Question: What does the author think of rock climbing? - It is an easy sport. - It is challenging. - It is quite dangerous. - It is extremely difficult.
A: It is challenging.

(Question)
Read the following article and select the best answer. Article: Ginny Ruffner is one of the best-known glass artists in the United States. Her one-of-a-kind pieces are colorful, detailed and often humorous. Over the years, she became famous for a method called lamp working, also known as flame working. It involves using a torch to melt and shape the glass instead of blowing on it. Ginny Ruffner almost died in a three-car accident in 1991. No one thought the Seattle-based artist would ever walk or talk again. An award-winning film documentary explores that period of her life. "It's scary when you can't talk, you can't do... all your life." said Ruffner. Ms. Ruffner was in a coma for five weeks and a wheelchair for five years. But she overcame her injuries. And although she still has difficulty walking and talking, she has willed herself back to work. Now, she has a team that helps bring her dream to life. Her team recently finished an eight point five meter-high flowerpot made of steel and aluminum. It is now in downtown Seattle. Ms. Ruffner was recently honored in Washington, DC. The Renwick Gallery presented a special showing of the film, "A Not So Still Life, the Ginny Ruffner Story." Ms. Ruffner says "it has been a long battle, but the hardest part has not been the physical problems. I hate being taken for granted, being ignored. The way I talk, people assume that I'm either really old, or kind of retarded , and that is so frustrating." But she is firm. She says "Fortunately I've done a lot of stuff in my life, so I know that the best thing is to be open to the mystery, who knows what great things will happen. I'm sure they're many more to come." Ginny Ruffner's art can be seen in more than forty museums around the world. Her work and her life continue to motivate people of all ages. Question: From this passage we can know Ginny Ruffner is _ . - determined and optimistic - ambitious and stubborn - hopeful and energetic - devoted and active
(Answer)
determined and optimistic