Read the following article and select the best answer. Article: XI'AN - China has introduced various emergency responses and long-term measures against air pollution in the central and eastern regions. The air quality index (AQI) for Xi'an reached 500 on Wednesday afternoon, at the top of the AQI scale, according to the national air quality monitoring website. Xi'an weather forecasters predict the smog will continue for the next week and air pollution may worsen. "I have to keep buying masks for my family," said Liu, buying masks at a pharmacy near her home in downtown Xi'an. "This is the only thing we can do to protect ourselves." On Wednesday, a city government emergency response plan was put into action, _ all construction and taking at least 50 percent of government vehicles off the road. Power plants must limit their output and reduce emissions. Nearly half the country, more than 100 cities in 20 provinces, has suffered from smog since last December. Many have taken action, including experimenting with artificial methods to reduce smog, limiting vehicle use and fining polluters. Assessments based on GDP alone were abandoned last month and more emphasis has been put on public well-being and the environment. Whether the move will be effective in forcing local governments consider environmental issues over economic growth remains to be seen. Environmental protection professionals are doubtful about the immediacy of the effects of these measures. Xiao Hang, an urban researcher at the Chinese Academy of Sciences, said it took London 50 years to lose the moniker "foggy London town", and Los Angeles still struggles to control its photochemical smog. "We can't ignore environmental problems during the development process and China has a long way to go," he said. Question: We can infer from the article that _ . - China is the only country suffering from smog - environmental professionals believe the air quality will soon be improved with these measures - assessments based on GDP alone were harmful to environmental protection - Xi'an was the most polluted city in China
assessments based on GDP alone were harmful to environmental protection

Read the following article and select the best answer. Article: Life gets noisier every day and very few people can be free from noise of some sort or another. It doesn't matter where you live--in the middle of a modern city, or a faraway village--the chances that you will be disturbed by jet aero planes, transistor radios, oil-powered engines, etc. are almost everywhere.We seem to be getting used to noise, too. Some people feel quite lonely without background music while they are working. Scientific tests have shown that total silence can be very frightening experience for human beings. However, some people enjoy listening to pop music which is very loud, and this can do harm to their eardrums .The noise level in some disco is far above the usual safety level for heavy industrial areas. One recent report about noise and concentration suggested that although a lot of people say that any noise disturbs their concentration, what really affects their ability to concentrate is a change in the level of noise. It goes on to say that a background noise, which doesn't change too much (music, for example) may even help people to concentrate. Question: Scientists have discovered that what prevents people from concentrating is _ . - any kind of noise - great changes in level of noise - background noise - various background music
great changes in level of noise

Q: Read the following article and select the best answer. Article: Three boys and three girls were going to Fort Lauderdale and when they boarded the bus,they were carrying sandwiches and wine in paper bags,dreaming of golden beaches as the gray cold of New York vanished behind them. As the bus passed through New Jersey,they began to notice Vingo, He sat in front of them,dressed in a plain,ill-fitting suit,never moving,his dusty face masking his age. He kept chewing the inside of his lip a lot,frozen into some personal cocoon of silence. Deep into the night,outside Washington,the bus pulled into Howard Johnson's,and everybody got off except Vingo. He sat rooted in his seat,and the young people began to wonder about him,trying to imagine his life:perhaps he was a sea captain,a runaway from his wife,an old soldier going home. When they went back to the bus,one of the girls sat beside him and introduced herself. "We're going to Florida," she said brightly, "I hear it's really beautiful." "It is,"he said quietly,as if remembering something he had tried to forget. "Want some wine?" she said. He smiled and took a swig. He thanked her and once again returned to his silence. After a while,she went back to the others,and Vingo nodded in his sleep. In the morning,they awoke outside another Howard Johnson's.And this time Vingo went in. The girl insisted that he join them. He seemed very shy, and ordered black coffee and smoked nervously as the young people chattered about sleeping on beaches. When they returned to the bus,the girl sat with Vingo again,and after a while, slowly and painfully,he told his story. He had been in jail in New York for the past four years,and now he was going home. "Are you married?" "I don't know. "You don't know?" she said. "Well,when I was in jail I wrote to my wife,"he said. "I told her that I was going to be away a long time,and that if she couldn't stand it.if the kids kept asking questions,if it hurt too much,well she could just forget me, I'd understand. Get a new guy,I said she's a wonderful woman,really something and forget about me. I told her... Question: What is the best title for the story? - An Unexpected Return - Forgiving My Absence - Going Home - The Old Oak Tree
A: Going Home

(Q).
Read the following article and select the best answer. Article: Delta College starts Street Fair San Joaquin Delta College will introduce its new Summer Street Fair, which runs from noon to 8 p. m every Friday stating this week through Aug. 9 in Delta's L-l parking lot near Pacific Avenue and March Lane. The fair goes with Delta's weekend flea market. This week's featured performers are guitarist Travis Matsumoto from noon to 3 p.m., and Julio and his Jazz Trio from 3 to 6 p.m. Lode Farmers Market opens The Angels Camp Certified Farmers Market begins its yearly run from 5 p.m. to dusk this Friday in Utica Park in downtown Angels Camp. Opening night will feature wine tasting from award-winning Four Winds Cellars, and live music by guitarist Nicholas Leffler. Visitors will find fresh, locally grown produce and specialty foods. There will also be barbecue and California- Mexican fusion cuisine. Join River Rafting for a good cause Whitewater enthusiasts can participate in Mokelumne Rive, Rafting Adventures on June 16 in Mokelumne Hill. Local outfitter O.A.R.S. is donating its services to help with the event. Departures are at 8 a.m., noon, or 4 p.m. The trip should last about three hours. The trip is appropriate for those 7 and older, and the ability to swim is not required. The cost is $ 70 per person. Films center on paddling water The festival is an annual contest that awards winning films that focus on paddling in rivers, lakes and oceans in a variety of locales. Tickets to the film festival are $12 in advance and $15 at the door, and are also available online at ticketriver.com/event/7002-reel-paddling-film-festival. The evening also includes a drawing. Prizes include whitewater trips on the South Fork of the American River. Question: If you want to enjoy the tasty foods, you can go to _ . - the new Summer Street Fair of Delta College - Lode Farmers Market - Mokelumne River Rafting Adventures - the film festival centering on paddling water
(A).
Lode Farmers Market