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.

Input: Consider Input: Article: People living in the UK take quite a few holidays abroad and in this country each year.Choices made about where to go, how to get there and what to do while there can either benefit or harm the environment. While on holiday Many of the things you can do to the greener on holiday will be the same things you can do at home--but there are also some extra things too, like avoiding gifts made from endangered plants and animals.Here are some suggestions: *Making the most of locally produced food and drink, and local activities and attractions will support people in the area you are visiting and reduce the need for further environmental influence from transport; *Switching off any air conditioning, heating and lights will help reduce climate change effect; *Save water--some countries suffer from water shortages and saving water can help avoid damage to our natural habitats  . Endangered species   Some gifts and foods available in some countries can be made from endangered plants or animals.Check before you buy, but if you doubt, avoid animal and plant gifts.More details of the types of products to avoid and illegal trade hotspots can be found on the Souvenir Alert web page. Making a positive contribution to the place you are visiting There are ways in which your holiday can help support local people and the environment: *There are many opportunities to volunteer and help with projects that conserve and improve natural habitats; *When you are away, or if you are looking for somewhere to visit, you can support projects or attractions which protect wildlife, such as nature reserves and conservation projects. 
 Answer: go around on foot

Output: According to the passage, we can  _   to help reduce climate change effect.


Input: Consider Input: Article: In China ,with the development of society, more and more people are annoyed at the continually rising house prices. They want to know who is to blame for it. Local governments,developers and speculators   share a vested   interest in it. People who are really in need of homes are most likely to suffer heavy losses. Many local governments depend on selling land to keep its normal operation. The higher land prices,the more money. Therefore,developers back the local governments by buying land at high prices. In return,the governments make favorable policies to help the developers. For example,drive all the possible home buyers to this nasty   market. They even encourage large numbers of speculators to catch more people. Rising house prices have already become the fence which divides the Chinese society. It has caused widespread dissatisfaction. The government will lose the support of the common people if leaving house prices out of control. Besides,rising house prices will stop us building the new countryside as the present policy actually forbid people to flow freely from cities to the countryside. Collecting taxes on houses can fundamentally solve this problem. On one hand,it will discourage the speculators. On the other hand,it will offer a stable tax resource apart from reducing the sales cost of the developers. secondly,stop the developers selling the houses before completion. If so,the developers will certainly try their best to sell all their houses once completed. And this will also lower speculators' expectation of price rising,which will decrease speculations. 
 Answer: speculators

Output: The only victims of rising house prices are  _  .


Input: Consider Input: Article: Ever since farmers began to grow grain, they have had to protect their crops from birds. In the 1300's, English farmers hired children to protect their crops. They were called "bird scares". The children chased birds and threw stones at them. Bird scares were replaced in the 1800's by scarecrows. A scarecrow is anything that is set in a field to scare birds away. Often it is a pole dressed like a person. Some farms with small fields still use scarecrows today. Farming became big business in the twentieth century. Scarecrows could no longer protect the huge fields of grain, so farmers used poisonous chemicals on the fields. The poison made the grain bitter. The birds usually would not eat the bitter grain. Although they can prevent crops from being destroyed by insects and birds, some chemicals can be harmful to humans. Therefore, farmers are using fewer chemicals now than they did twenty years ago. Perhaps scarecrows may be seen more often in the fields in the future. 
 Answer: the fourteenth century


Output: English farmers began to hire children to get away birds since  _  .


