Please answer this: Write a multi-choice question for the following article, with the given choices and answer: Article: London has always been known for its "black fogs". In the winter of 1952, a milky white fog rolled into the city. As the smoke poured into the air, it was so hard to see that people had to walk in front of the buses to guide them. In this way, the most serious air pollution disaster in history began. When it was over, more than 4,000 people had been killed by the thick black smog. New York City has had several London-type smogs since 1950. Each time, 100 to 400 deaths were caused by the smog. Although these smogs were not as deadly as London's, New York City has the worst air pollution problem in the United States. In all the killer smogs, factories and homes poured smoke and fumes into the air from the furnaces. The chemical fumes combined with the water droplets in the fog to form harmful substances. These substances caused the illness of those who breathed the polluted air. Usually, such harmful fumes rise into the upper air and are blown away by the wind. But sometimes there is an unusual weather condition called a temperature inversion. A layer of cold air remains near the ground as smoke and fumes pour into it. This is covered by an upper layer of warm air that acts like a lid. It prevents the polluted cooler air from rising. The harmful fumes pile up and make people ill. The smog may be so thick that airports are closed and chains of collisions occur on the highways. Another type of smog occurs in Los Angeles. Here the weather may be clear and sunny. But stinging eyes and dry coughs show that harmful chemicals fill the air. The smog is due to invisible gases, mostly from automobile exhaust. Because these chemicals are changed by the sun high up in the air, it is called photochemical smog. It contains automobile exhaust fumes and nitrogen oxides changed by the sun's rays. Added to these are sulfur dioxide and other fumes from factories and oil refineries. Photochemical smog is found in many large cities all over the world. Killer smogs don't happen very often, fortunately. But in Beijing, a combination... Options: A London B New York C Los Angeles D Beijing Answer: A London Question:
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Answer: From the passage we know that the most serious black smog disaster took place in _ .

Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: The United States government wants to know what the public thinks about its findings on the safety of cloned animals. The Food and Drug Administration says meat and milk from clones of adult cattle, pigs and goats are safe to eat. An F.D.A. official called them "as safe to eat as the food we eat every day." And when those clones reproduce sexually , the agency says, their offspring are safe to eat as well. But research on cloned sheep is limited. So the F.D.A. proposes that sheep clones not be used for human food. The United States this year could become the first country to approve the sale of foods from cloned animals. First, however, the public will have ninety days to comment on three proposed documents. On December 28th the F.D.A. released a long report, called a draft risk assessment, along with two policy documents. The agency says it must receive comments by April second. The F.D.A. seemed ready to act several years ago, but an advisory committee called for more research. For now, the government will continue to ask producers to honor a request that they not sell foods from cloned animals. Clones are still rare. They cost a lot and are difficult to produce. The F.D.A. says most food from cloning is expected to come not from clones themselves, but from their sexually reproduced offspring. It says clones are expected to be used mostly as breeding animals to spread good qualities. Public opinion studies show most Americans do not like the idea of food from cloned animals. But this research also shows the public knows little about cloning. Cloning differs from genetic engineering. A cell taken from a so-called donor animals is grown into an embryo in the laboratory. Next, the embryo is placed into the uterus of a female animal. If the process is successful, the pregnancy reaches full term and a genetic copy of the donor animal is born. Options: A foods from cloned animals are popular in America B cloned adult animals are safe to eat except sheep. C cloned animals will be easy to produce D most foods from cloning is expected to take place of other foods Answer: B cloned adult animals are safe to eat except sheep. Question:

A: From the passage we know that_.

Q: Write a multi-choice question for the following article, with the given choices and answer: Article: Christmas in Australia is often very hot. Whereas the northern hemisphere is in the middle of winter, Australians are baking in summer heat. It is not unusual to have Christmas Day well into the mid 30 degrees Celsius, or near 100 degrees Fahrenheit. A traditional meal includes a turkey dinner, with ham, and pork. A flaming Christmas plum pudding is added for dessert. In the Australian gold rushes, Christmas puddings often contained a gold nugget. Today a small favor is baked inside. Whoever finds this knows s/he will enjoy good luck. Another treat is Mince Pies. Some Australians and particularly tourists often have their Christmas dinner at midday on a local beach, Bondi Beach in Sydney's Eastern Suburbs attracts thousands of people on Christmas Day. Other families enjoy their day by having a picnic. If they are at home, the day is punctuated by swimming in a pool, playing Cricket out the backyard, and other outdoor activities. The warm weather allows Australians to enjoy a tradition which started in 1937. Carols by Candlelight is held every year on Christmas Eve, where tens of thousands of people gather in the city of Melbourne to sing their favorite Christmas songs. The evening is lit by as many candles singing under a clean cut night sky. The sky with its Southern Cross stars is like a mirror. Sydney and the other capital cities also enjoy Carols in the weeks leading up to Christmas. Australians surround themselves with Christmas Bush, a native plant which has little red flowered leaves. Options: A Tourists like to have Christmas dinner on a beach B People play outdoor activities at home after picnic. C Carols by Candlelight is held every year on Christmas Eve D Sydney enjoys Carols in the weeks leading up to Christmas. Answer: B People play outdoor activities at home after picnic. Question:
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Which of the following statements is Not true according to the passage?