Read the following article and select the best answer. Article: There are many differences between America and China. The biggest difference is traffic rules. In America there are too much more cars than in China. But there are much fewer traffic jams and accidents in America than in China. We hardly see traffic police in the street, but all cars obey strictly traffic rules, and people hardly find that a car does not obey traffic rules in the street. About American traffic rules, there are many better terms, such as: 1. Stop line: There are stop lines in all crossing without traffic light (some have two stop lines and others have four stop lines). All cars must stop while meeting the stop line. 2. Traffic light: There is traffic light in the crossing of the road. Cars may almost turn every direction. The traffic light can give signal step by step including u-turn. There is a kind of middle lane of turning left. When a car wants to turn left in the road, he may enter into the middle lane of turning left and give a signal of turning left. When he thinks being safe, he may turn left. In many conditions the order of passing is also given very specifically. If people want to change lane or turn, they must look behind and think being safe. Only so, they may do it. 3. Specific item: Such as parking, there are three kinds of lines (their colors are white, blue or red) in the roadside. Every line may park different kinds of cars. There are many streets in some residential areas , and there is a kind of rule that any car cannot park at any time or any period time. In every parking, there are some special positions for invalid people. 4. About the priority of passenger and car: At any case, passengers have the priority to cars. And only after passengers have passed the road and got the top of sidestep, cars may go ahead. In general, traffic rules of America are very specific, convenient, safe and humanizing. Question: Why is there a middle lane of turning left on the road? - It is designed for the cars that want to turn left. - It is very safe to drive there. - It is very convenient for the traffic police to find the cars that break the rules. - The cars that want to turn left can easily give a signal of turning left.
It is designed for the cars that want to turn left.

Read the following article and select the best answer. Article: An independent college claimed to have become the first school in England to make Chinese a compulsory subject for its pupils. Richard Cairns, the headmaster of Brighton College, said the move aims to recognize the importance of China as the world's fastest growing economy. Chinese will become one of the core subjects at the 1,200-pupil college from September. At present the school has only a "handful" of native Chinese students, but it hopes to attract more in the future. Mr Cairns, who made the announcement in his first week as head of the high-achieving college, said, "One of my key tasks is to make sure that the pupils at Brighton College are equipped for the realities of the 21st century, and one of those realities is that China has the fastest growing economy in the world. "China has replaced Britain as the world's fourth-largest economy. We in Britain need to face up to this challenge, see it for the trading opportunity that it is, and ensure that our nation's children are well-placed to thrive in this new global reality. "A better understanding of the language and culture of China will be hugely important to the advantage of the children of Brighton College." Mr Cairns said he hoped the Chinese children already at the college would help and encourage their fellow pupils to learn their language. In order to lead the way, Mr Cairns, a historian from Oxford, plans to take part in the first Chinese class as a pupil. "I have agreed to join the first Chinese class as a pupil. I think it is the best way for me to show the pupils here how important I regard this new addition to our core subjects." Question: The college makes its students learn Chinese mainly because _ . - Chinese is a language spoken by the largest population in the world - it realizes the importance of China as the world's fastest growing economy - Chinese is the easiest language for the students - there are many native Chinese students at the college
it realizes the importance of China as the world's fastest growing economy

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Read the following article and select the best answer. Article: About this time every year, I get very nostalgic . Walking through my neighborhood on a fall afternoon reminds me of a time not too long ago when sounds of children filled the air, children playing games on a hill, and throwing leaves around in the street below. I was one of those children, carefree and happy. I live on a street that is only one block long. I have lived on the same street for sixteen years. I love my street. One side has six houses on it, and the other has only two houses, with a small hill in the middle and a huge cottonwood tree on one end. When I think of home, I think of my street. Only I see it as it was before. Unfortunately things change. One day, not long ago, I looked around and saw how different everything has become. Life on my street will never be the same because neighbors are quickly grown old, friends are growing up and leaving, and the city is planning to destroy my precious hill and sell the property to contractors. It is hard for me to accept that many of my wonderful neighbors are growing old and won't be around much longer. I have fond memories of the couple across the street, who sat together on their porch swing almost every evening, the widow next door who yelled at my brother and me for being too loud, and the crazy old man in a black suit who drove an old car. In contrast to those people, the people I see today are very old neighbors who have seen better days. The man in the black suit says he wants to die, and another neighbor just sold his house and moved into a nursing home. The lady who used to yell at us is too tired to bother any more, and the couple across the street rarely go out to their front porch these days. It is difficult to watch these precious people as they near the end of their lives because at once I thought they would live forever. The "comings and goings" of the younger generation of my street are now mostly "goings" as friends and peers move on. Once upon a time, my life and the lives of my peers revolved around home. The boundary of our world... Question: The writer calls up the memory of the street _ . - every year when autumn comes - in the afternoon every day - every time he walks along his street - now that he is an old man
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every year when autumn comes