Read the following article and select the best answer. Article: If California were not already so famous for Sillicon Valley and Hollywood, it might be well-known for the groups of water-technology firms in its San Diego County. The reverse-osmosis (RO) spiral module, the technique that supports turning seawater and waste-water into drinkable stuff, began in San Diego in 1964. Today dozens of firms in the area supply many of the world's approximately 13,000 RO plants in places from the Persian Gulf and Israel to Australia and China. Southern California itself, however, has not so far been a big user of its own technology. This is surprising, given that the whole American south-west faces a water problem. But now as the climate gets warmer and the population increases, there is more agreement that the existing infrastructure, consisting of vast pipes that carry water from the Sacramento Delta in the north and the Colorado River in the east, will not be enough. In places such as San Diego, which has inadequate and salty groundwater and currently imports 90% or its water, the answers must be greater conservation, reusing as much water as possible, and getting most of the rest from the sea. The first part, conservation, has been widely accepted by the public. San Diego today uses less water with a larger population than it did in 1989, the year water consumption peaked. The second part, water recycling has been a hard sell, because of an unpleasant factor. Americans still use the term "toilet-to-tap" for recycling, even though properly treated waste-water is nowadays completely clean. Singapore made its programme acceptable in part by renaming it as NEWater. This is where desalination comes in, which means taking the salt out of salt water. A firm called Poseidon Resources is now close to building the biggest desalination plant in America behind a power station by the beach in Carlsbad. The power plant sucks in 304m gallons of seawater a day for cooling, so Poseidon plans to change 104m gallons a day by using the RO spiral module. Lots of people like the idea. Once fully... Question: How many solutions to the water problem in San Diego are mentioned in the article? - 2. - 3. - 4. - 5.
3.

Read the following article and select the best answer. Article: Imagine one day, the water taps in your house stop running. You have to buy water from shops. And still there isn't enough for everyone. Your mother has to save the family's shower water to do other things. Would you be able to stand that kind of life? Probably not. But _ 's what kids in Yemen are experiencing. Experts said Yemen is going to be the first country in the world to run out of water. According to a report, the capital, Sanaa, will run out of drinking water as early as 2025. Because of the shortage, the government often cuts the water supply. Hannan, an 18-year-old from Lahej, told the Times: "In a good week we'll have a water supply all week. But then the following week there will be water only for a day or two." Hannan said only rich people have enough water to use. They can buy water from the shops or from the water truck. Private companies own the trucks. They travel around the city every day to sell water - at very high prices. "A lot of people can't afford it," she said. The average person in Yemen uses 100 to 200 cubic meters of water per year. That is far below the international water poverty line of 1,000 cubic meters. The government is thinking of making use of seawater. But it will cost a lot and it may not happen soon enough to help the people of Yemen. Question: The purpose of the text is to _ . - tell us what life is like in Yemen - draw our attention to water shortage - remind us how important water is - show us ways of solving problems
draw our attention to water shortage

Q: Read the following article and select the best answer. Article: A man in a very splendid restaurant started to take off his jacket. Seeing this, the head waiter dashed to his table and said, " I'm afraid I must ask you to keep your jacket on, sir, for it is not good manners to do it in such a smart restaurant." "Now listen," said the man, "I'll let you know that the Queen of England gave me permission to remove my jacket here." "The Queen of England?" said the waiter in great surprise. "Sure," replied the man, " When I was in England last month, a friend of mine who had a very important position in high society took me to see the Queen. It was rather hot, so I started taking my coat off. The Queen looked over and said, "You may do that in the United States, but you may not do it here. " So I got the Queen's permission, right? Question: It is certain that the story happened _ . - in England - in the Queen's party - in America - in an ordinary restaurant
A: in America

Read the following article and select the best answer. Article: I am sitting in the examination hall among my classmates with a sheet of questions in front of me. The only difference between my classmates and me is that they are all busy filling out their sheets, while I am just sitting, staring at the wall in front of me. My mind silently fights to keep memories as I search for something to start this essay with--an essay about a man who was taken away from me before I was old enough to say his name. With no words coming to my rescue, I helplessly glance down at the title of the essay: "My Father". Since I do not have a clear recollection of him, I can only describe him on the basis of what I have heard from my mother and other s. They all told me that he was caring, hardworking, a man of his word and did everything to keep his family happy. They stop talking about him as suddenly as he disappeared from our lives. He went to work one day and never returned. My mother ran from hospitals to police stations and even to mortuaries but found no trace of him. He was gone as if he never existed. While growing up I could never understand what actually happened to him but there were times when I heard people talking in whispers about how he was taken away by security forces because he was against the state. I do not know how far that is true but what I would like to know is how that is possible? He was an ordinary man working day in and day out to make ends meet and put food on our table. He was least concerned about the state of affairs in Pakistan. I understand that my teachers are probably expecting me to write flowery words about him but how can I be expected to write about a man who never existed? Perhaps, it would be unfair to say he never existed. He still does in my memories. He was a fruit merchant and owned a shop. Every evening he would return from work with dates or sweets, his hands were never empty. I also remember that he took me to the Koh-e-Murad once; he told me that this was a very sacred place, asking me to fold my hands and ask Allah for whatever I... Question: The author stared at the wall in front because she . - had difficulty with her studies - had too many materials for her essay - thought of her father seeing the title - knew nothing about her father
thought of her father seeing the title