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.

Article: If parents bring up child with the aim of turning the child into a genius , they will cause great damage to him. According to several leading educational psychologists , this is one of the biggest mistakes which some parents make. Generally, the child will understand very well what the parent expects, and will fail. Unrealistic parental expectations can cause great damage to children. However, if parents are not unrealistic about what they expect their children to do, but are hopeful in a sensible way, the child may succeed in doing very well -- especially if the parents are very supportive (,) of their child. Michael Li is very lucky. He is very fond of music, and his parents help him a lot by taking him to concerts and arranging private piano and violin lessons for him. They even drive him 50 kilometres twice a week for violin lessons. Although Michael's mother knows very little about music, Michael's father plays the trumpet in a large orchestra . However, he never makes Michael enter music competitions if he is unwilling. Michael's friend, Winston Chen, however, is not so lucky. Although both his parents are successful musicians, they set too high a standard for Winston. They want their son to be as successful as they are and so they enter him in every piano competition held. They are very unhappy when he does not win. "When I was your age, I used to win every competition I entered." Winston's father tells him. Winston is always afraid that he will disappoint his parents and now he always seems quiet and unhappy.
Answer: what aim of a child can be much easier to reach
The main idea of the passage is _ .

Article: April Fool's Day , was a day of laughing and jokes. This day is kept in many countries, not only in Britain and the USA. This is a day to play jokes and make people laugh. Nobody knows when was the beginning of this custom. Some people connect it with the end of winter and the return of spring which make people merry and ready to play jokes. In Scotland young people were sent for hen's teeth or bird's milk and everybody laughed when they could find such things. In the USA and Britain some people could place a sign on a person's back with the words "push me!" Children often tell a grown-up that his sock is torn or he has something black on his face, and then shout "April Fool!" There is also the old purse trick. A purse is left lying in the street, but when someone wants to take it, it is quickly pulled back by a string which the hidden joker holds in his hand. Or the purse may be filled with stones. Sometimes invitations are sent to people, asking them to come and visit somebody, but when they come they see that nobody expects them. Some people like to telephone to the zoo on the day and ask for Mr. Fish, Miss Fox or Mrs. Cat. All these jokes are very old but still they make people laugh.
Answer: Someone
_ knows when the custom of April Fool's Day started.

Article: A strong wind can be a dangerous thing-sometimes it is powerful enough to knock you off your feet.But to plants,the wind is a source of new life,carrying them or their spores thousands of miles. A NASA satellite called QuikSCAT has discovered highways of wind over the Earth's oceans.Scientists believe these invisible roads may explain why many nonflowering plants,such as mosses and lichens ,grow where they do. The satellite is able to send microwaves from space to the surface of the ocean.The pattern of signals that come back shows which way the winds are blowing. Using this _ , the scientists studied a group of islands in the southern hemisphere ,near Antarctica.Winds tend to blow anticlockwise in this region,but there are lots of local differences. When the researchers compared these local patterns to botanical data,they found that the wind had an important effect on where species of mosses,lichens,and other nonflowering plants grow. For example,Bouvet Island and Heard Island,share 30 percent of their moss species,29 percent of liverworts ,and 32 percent of lichens-even though they are 4,430 kilometers apart.In contrast,Gough Island and Bouvet Island,separated by just 1,860 kilometers of sea,share only 16 percent of mosses and 17 percent of liverworts.They have no lichens in common. Ferns and flowering plants don't travel as well in the wind,so they don't show the same kinds of distribution patterns.
Answer: one of the wind
This story is about_.