instruction:
In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.
question:
Article: Yu Pengnian is an 88-year-old real estate Chinese businessman. He amassed a fortune of $1.3 billion dollars during his career but instead of keeping the money and living like an emperor, he decided to give it all away. All of his fortune will be spent on helping poor Chinese students get a better education. And Yu isn't the only super-rich person in China who has this spirit of giving. Chen Guangbiao, a Jiangsu recycling tycoon, has given millions of dollars to charity and promises to give all of his money to charity when he dies. Yu and Chen are among the many businessmen who have become prosperous during China's economic rise. An American business magazine, Forbes, estimates that there are 117 billionaires in China and hundreds of thousands of millionaires. What sets Yu and Chen apart from the rest, though, is their tremendous generosity(,) when it comes to donating money to charity. Last week Bill Gates and Warren Buffett came to Beijing. Gates and Buffett, two of the world's richest men, are also the world's biggest philanthropists. They invited fifty of China's richest people to have dinner with them and talk about the spirit of giving. At first, only a few people accepted their invitation. It seemed some of the invited guests were afraid that Buffett and Gates were going to pressure them into giving their wealth to charity. A lot of people are angry at the billionaires who are not willing to give away their fortunes. They _ hem for being miserly and not caring about the poor and the less fortunate. But I think this criticism is wrong. A gift, any gift, should come from the heart. Instead of criticism, these reluctant billionaires should be encouraged to follow the examples of Yu Pengnian and Chen Guangbiao. Encouragement is always a better strategy than criticism. As we say in English, "You can catch more flies with honey than with vinegar."
Answer: helping poor Chinese students get a better education
answer:
Yu Pengnian will spend all of his fortune in _

question:
Article: The place is England. The year is 1928. One of the founding theorists of quantum mechanics , Paul Dirac, is scratching his head because solutions to his equations have _ unexpected results. For the solutions to make sense, he reasons, there must be a particle that has the mass of an electron but the opposite charge. At the time, such a thing was not known to exist. Several years pass before American physicist Carl Anderson observes a "positive" electron, or positron that confirms Dirac's prediction. Antimatter , as the name implies, can be described as the opposite of ordinary matter. Every particle in the universe has characteristics such as mass and charge. With antimatter, the mass remains constant, but the sign of the charge is reversed. All particles have an antimatter counterpart , even the chargeless neutron . Unlike matter, antimatter is not common. Unless you're in the upper atmosphere, or inside a particle accelerator, you're not going to come across it. "Antimatter was not always so rare," Stephane Coutu, Penn State particle physicist says. There was a time when it was as prevalent as matter itself. "Right after the Big Bang ," Coutu explains, "we believe there must have been exactly the same amounts of matter and antimatter...and yet owing to some small asymmetry in the laws of particle interactions, all of the antimatter and most of the matter in the early universe was annihilated . We are left today with the resulting matter-dominated universe." Science fiction is rife with tales of high-energy particle annihilation, and indeed, antimatter weapons have appeared in current bestselling novels. This is unrealistic, Coutu says. "[It] would be very impractical owing to very great difficulties in producing and maintaining significant amounts of antimatter." Technology that uses the properties of antimatter is actually feasible outside of science fiction, however. Positron emission tomography (PET) is a medical technique that can be used to detect cancer, measure blood flow and detect coronary artery disease. While antimatter may never be used as a bomb, it certainly has a positive future in life-saving medical diagnostic tools, the anti-weapon.
Answer: It's not easy to produce and maintain large quantities of antimatter
answer:
According to Coutu, _ .

question:
Article: There is an old saying: No one thinks he's a bad driver. Here's an updated 21stcentury version: No one thinks he sends annoying e-mails. But, plenty of us do. Aprefix = st1 /PrincetonUniversityresearch found that 22 percent of Americans say e-mail has added to their work pressures and caused misunderstandings. Here's a guide on e-mail etiquette to help you avoid being annoying. Experts say there are three types of e-mails with different rules--close friends, office and public e-mails.The close friends e- mail You can send your lover, your closest friends and your siblings(brothers and sisters)anything from jokes to"you gotta see this!".But bear in mind that not everyone shares your sense of humour and you may expose them to viruses.The office e-mail Don't add to people's workload. Keep e-mails short and to the point. *Make the subject line factual and brief. *Write in clear, concise sentences. *Provide your name and phone number at the end.The Public e-mail Occasionally we have to send an e-mail to a group of people. If possible, write your public e-mails with a who, what, when, where structure. For example: Who:All members of the soccer team What:Team photo When:Saturday, March 25, at noon Where:Playing field 2. Finally, before you hit"Send", check the following. *Is the e-mail a"flame"? Never send an e-mail in anger. It could stay around forever and haunt your professional and personal life. *Check the "To"field. Is this really who you want to send the message to? *Spell-check the message. Does it have an error that can affect you badly?
Answer: many people think highly of themselves
answer:
The writer uses the old saying at the beginning of the passage to show that_.