Read the following article and answer the question. Article: China is a country on the move--especially around its Lunar New Year holiday. This year, the holiday crush promises to be even heavier than before. Government officials estimate that Chinese people will take to the air, roads and railways 3.62 billion times over a 40-day period around the nation's most important holiday this year as people push their way home for family gatherings or to satisfy their new-found passion for travel. Getting tickets to all those would-be travelers is a _ challenge that annually tries patience. And it is the railway system that routinely is most unable to cope. Railways are the transport of choice for low-cost long-distance travel, and that's where the ticketing system routinely falls down. Much of the criticism has, focused on the railway's online purchasing system, which has been unable to keep pace with the huge demand and also failed to stop scalpers from ending up with many of the hard-to-find tickets. While insisting that online sales were the fairest way to get tickets for travelers, railway officials told reporters that the public need to be patient. Efforts were being made to provide online identity checks that would reduce the ticket scalping problems. While officials had little good news for rail passengers, they did manage to bring a few smiles to those traveling by car as the country's extremely expensive highway tolls will be free of charge for the period of the official holiday. Question: According to the text, getting tickets _ around the official holiday. Answer:
OPTIONS:
- is just a piece of cake
- is more costly
- takes great effort
- is convenient for travelers

Answer: takes great effort

Read the following article and answer the question. Article: Hawaii is an important trading center and about six million tourists visit there every year. With all that traffic in and out, exotic species have plenty of opportunities to reach the islands. According to biologists, exotic species are the number one threat to the state' s economy, environment, and way of life. The question in Hawaii is, can the invaders be stopped? Quarantines are one way to do this. Quarantine is the process of isolating animals or products. In Hawaii, pet dogs and cats coming into the state remain in a special holding facility for four months to make sure they don' t have rabies( ) Many agricultural products are also quarantined to see if they are carrying insect pests or plant diseases. Inspection is a second way to stop biological invaders. At airports, borders, and shipping ports, inspectors examine passengers and their baggage to see if they are carrying exotic species. The inspectors also destroy fruits, vegetables, or other goods that might be carrying harmful pests or diseases. Specially trained dogs also smell goods in the ship for exotic species. What if an exotic species slips by inspectors? Then efforts are made to control the invader. In Hawaii,government agencies control invaders by setting livetraps around wildlife shelters and other places. At Haleakala National Park employees have built miles of fences to keep out exotic pigs and goats. For years these animals ate and walked over native rain forest plants, hut the fences have helped reverse( )this damage. Now native plants grow in places that were bare rock only a short time ago. In some cases biological control helps to solve the exotic species problems. It is the science of controlling one invader with another. In the early 1900s, several exotic predators were imported to Hawaii to eat a harmful exotic pest called the sugarcane leafhopper. The insect was destroying 70,000 tons of sugar a year ,but the predators brought it under control. The efforts of these scientists and other people are vitally important. In Hawaii... Question: Hawaii is at a great risk of invasion by exotic species, because _ . Answer:
OPTIONS:
- many agriculture products grow there
- regular inspections of animals are useless
- millions of people go to Hawaii each year
- biological control efforts have not worked

Answer: millions of people go to Hawaii each year

Read the following article and answer the question. Article: A fellow speaker from California named Geri flew to Japan, in her favorite jeans and a casual jacket, to give her first speech. Fourteen hours later, four perfectly dressed Japanese gentlemen greeted her at Narita Airport. Smiling and bowing low, they handed her their business cards. With her bag in one hand, Geri took their cards with the other. She thanked them, glanced briefly at the cards, and put them into her jeans pocket quickly. When the five of them arrived at the hotel, they invited Geri to tea in the lobby . While sipping tea, the gentlemen presented her with a small gift which she eagerly opened. She was thrilled with the gift and shouted excitedly, "Oh, it's beautiful!" At this point, the four Japanese gentlemen stood up and, bowing only very slightly, said "Sayonara" and left immediately. Poor Geri was left astonished. What did she do wrong? Everything! Her jeans were the first gaffe. Even if you're coming off a bicycle in Japan, you do not meet c1ients casually dressed. The second mistake was Geri's handling of their business cards rudely. In Japan, the business card is one of the most important communicative tools. It is always presented and accepted respectfully with both hands. However, Geri put their cards away much too quickly. In Japan, people use business cards as a conversation starter. You chat about each other's cards and work and do not put theirs away until they gently and respectfully place yours in safekeeping. Putting it carelessly into her jeans pocket was the ultimate disrespect. Then, the fourth horror of horrors was that Geri should not have opened the gift in front of her clients. In a land where saving face is critical, it would be embarrassing to discover the gift they gave was not as nice as the one they received. What is worse, Geri hadn't even given them a gift! Question: Why did the four Japanese gentlemen leave Geri suddenly? Answer:
OPTIONS:
- Because they couldn't bear Geri's behavior any longer.
- Because they had finished the task.
- Because Geri had something more important to do.
- Because Geri felt embarrassed.

Answer:
Because they couldn't bear Geri's behavior any longer.