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Read the following passage and mark the letter A, B, C, or D on your answer sheet te indicate the correct answer to each of the questions from 31 to 35. The walnut tree produces wood that is used for countless purposes, and is considered the finest wood in the world. The wood is easy to work with, yet it is very hard and durable and when it is polished, it produces a rich, dark luster. It also shrinks and swells less than any other wood, which makes it especially desirable for fine furniture, flooring, and even gun stocks. In fact, just about every part of the walnut is unusually hard and strong. The nut of the tree is encased inside a very hard shell, which itself is enclosed in a leathery outer covering called a husk. It requires real effort to break through those layers to get at the tasty meat inside. Yet every part of the walnut is useful to people. The outer husk produces a dark reddish stain that is hard to remove from the hands of the person who opens the nut, and this pigment is widely used in dyes and wood stains. The inner shell is used as an abrasivesubstance to clean jet engines. And the meat of the nut is extensively used in cooking, ice cream, flavorings-and just eaten raw. Walnut trees exudea chemical into the soil near their roots which can be poisonous to some trees and shrubs. Fruit trees, for example, will not survive if planted too close to a walnut. Many other plants, such as maple trees or ivy, are not affected by the walnut's presence, and are well-suited to grow in its vicinity. Câu 31: What is the topic of this passage?

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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 26 to 30. Books are essential to learning as they (26) _____________ unlimited information to the readers. If you want to know about dogs, you can easily learn about dog behavior, breeds, caring, and various topics about our canine friends by reading books. You don't have to go to school just to gather quick information about a subject. (27) _____________you need to do is grab a book, read, and absorb the contents. People who are in need of data can acquire them from books. It is not necessary to attend school in order to get information. A quick scan on books will give you the details, facts, and data that you need about a topiC. Books are actually one of the best sources of information. One of the main reasons why they are (28) _____________as top sources of knowledge is because they provide unlimited facts to the readers. If you do a research, you can definitely find (29) _____________you are looking for from books. This is why we often turn to books or any reading materials whenever we have a research about a project. Whether you are a student or a professional, you will definitely gain something new whenever you open a page of a book. Before the invention of laptops and iPads, books were known as the ultimate source of information. Unlike the internet, you can bring any book you want with you anywhere you go. (30) _____________, they don't take up much space in your bag. You can easily carry them when you go out on a trip or while traveling to school.

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