TASK DEFINITION: In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.
PROBLEM: Article: Everyone needs friends. As the old saying goes, " No man is an island" . In other words, no one can survive without the help and friendship of others. One can hardly live without a friend. Society is made up of people , and making friends is a very important part in our life. Friends can give you a lot. Firstly, if you have trouble with some problems, you can talk to your good friends and exchanged opinions . Thus you will feel comfortable and encouraged.Secondly, if you wish to do some physical exercises, such as playing table tennis, you can play with friends and have a good time, In short, we need friends. But what is true friendship ? Some people think friends are people whom they can play with, others believe true friendship lies in similar interests . However, in my opinion, "A friend in need is a friend indeed". True friendship can encourage you when you are in difficulties . True friends can give you warnings against danger. True friends not only share with you your joy and happiness but also your trouble and anxiety.When you need him he will give you a hand and _ . Of course, these principles are the same to you when you treat your friends.
Answer: Everyone needs friends' help and friendship.

SOLUTION: What does the author want to tell us by saying, "No man is an island"?

PROBLEM: Article: Helicopter Aerial Tour Explore the Grand Cannon from the eyes of the eagle. A wonderful 12- to 15-minute helicopter tour will soar through the canyon for an aerial experience of wonderful views. Our aerial tour is not available anywhere else in the world! Ticket:$120. 00 per person, plus 10% tax. Please call us at 1-888-868-9378 for seasonal rates, specials or to book by phone. Helicopter-Boat Tour Helicopter tour starts at the Grand Canyon, West Side. Take a 4,000-foot fall to the Colorado River below. Helicopters fall 4,000 feet from the canyon side to the banks of the Colorado River where visitors can enjoy a 15- to 20-minute boat ride down the Colorado. Ticket:$150. 00 per person, plus 10% tax. Champagne Helicopter Tour Experience the beauty of the Grand Cannon: Soar above the Hoover Dam and the dead volcanoes. You go aboard a million-dollar helicopter with all forward facing seats allowing 180 degrees of views in air-conditioned comfort. You will see the Hoover Dam, the Colorado River, the Grand Cannon and more! You land to have a champagne picnic lunch at the Grand Cannon. Las Vegas Adventure Tour Helicopter tours to the Grand Canyon West include a wonderful Las Vegas adventure tour. Aerial sightseeing tours originating in Las Vegas, Nevada include breathtaking views of Lake Mead, the Mohave Desert, and the west edge of the Grand Canyon. Aerial tours including the round trip as well as combination tours attract many visitors. Visitors arriving at the Hualapai elation's Grand Cannon West Airport may select one of the activities above.
Answer: 330 dollars.

SOLUTION: How much should a couple pay for a helicopter-boat tour?

PROBLEM: Article: NOT all math skills are learned in the classroom. Some of them come naturally. Consider the split-second calculations you make when you estimate the number of empty seats on the school bus or the number of cookies in a cookie jar. These estimates can often be done without counting. That's because humans are born with the ability to closely guess the number of items in a group. Researchers call this ability a person's "number sense". To see how a person's inborn number sense might be linked to mathematical performance in the classroom, psychologist Justin Halberda and his colleagues from Johns Hopkins University in prefix = st1 /Baltimore,USran some tests. The scientists asked 64 14-year-olds to look at images of yellow and blue dots that flashed on a computer screen for a fraction of a second. Each image contained between 10 and 32 dots that varied in size. Some images contained twice as many blue dots as yellow dots. In other images, however, the number of blue and yellow dots was nearly equal. For each image, the students were asked to estimate which color1 had more dots. The scientists found a wide variation in how well students could pick the color1 with the most dots. The scientists then looked at the students' math scores dating back to kindergarten. Children that performed best in the image test also scored the highest in standard math tests. The same finding held true at the other end of the spectrum . Students who didn't score well on the image test received lower math scores. The study was the first to show a link between a person's inborn number sense and his or her achievement in formal math training. Does this connection mean that one cannot be good in math if they have a weak number sense? Or that having a strong number sense is a guarantee for good grades in math? The answers are not clear. While scientists continue looking at the possible links between a person's number sense and math achievement, one thing is certain: Doing lots of math homework will _ your chances of success.
Answer: Those who have a strong number sense are sure to do well in math.

SOLUTION:
Which of the following is not true according to the passage?