A.  x ⋮ 7

B.  x ⋮ 7

C.  x ∈ ∅

D.  x ∈ ℕ

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.

          Industrialization came to the United State after 1790 as North American entrepreneurs increased productivity by reorganizing work and building factories. These innovations in manufacturing boosted output and living standards to an unprecedented extent; the average per capita wealth increased by nearly 1 percent per year - 30 percent over the course of a generation. Goods that had once been luxury items became part of everyday life.

          The impressive gain in output stemmed primarily from the way in which workers made goods, since the 1790’s, North American entrepreneurs - even without technological improvements - had broadened the scope of the outwork system that made manufacturing more efficient by distributing materials to a succession of workers who each performed a single step of the production process. For example, during the 1820’s and 1830’s the shoe industry greatly expanded the scale of the outwork system. Tens of thousands of rural women, paid according to the amount they produced, fabricated the “uppers” of shoes, which were bound to the soles by wage-earning journeymen shoemakers in dozens of Massachusetts towns, whereas previously journeymen would have made the enduring shoe. This system of production made the employer a powerful “shoe boss” and eroded workers’ control over the pace and conditions of labor. However, it also dramatically increased the output of shoes while cutting their price.

                   For tasks that were not suited to the outwork system, entrepreneurs created an even more important new organization, the modem factory, which used power-driven machines and assembly­line techniques to turn out large quantities of well-made goods. As early as 1782 the prolific Delaware inventor Oliver Evans had built a highly automated, laborsaving flour mill driven by water power. His machinery lifted the grain to the top of the milt, cleaned it as it fell into containers known as hoppers, ground the grain into flour, and then conveyed the flour back to the top of the mill to allow it to cool as it descended into barrels. Subsequently, manufacturers made use of new improved stationary steam engines to power their mills. This new technology enabled them to build factories in the nation’s largest cities, taking advantage of urban concentrations of inexpensive labor, good transportation networks, and eager customers.

The word “prolific” in the last paragraph is closest in meaning to _________.

A. famous

B. productive

C. self-employed

D. progressive

Read the following passage and mark the letter A, B, C , or D to indicate the correct answer to each of the questions.

        These days it is easy for most of us to get a hold of the latest books or magazines. We can go to bookstores, order them through the Internet, or borrow them from the local libraries. Now imagine having to walk miles and miles through a hot sandy desert just to borrow a book. This is the reality for people living in the villages of the Carissa region of Kenya in East Africa.

        In 1996, librarian Wycliffe Oluoch used to spend each day waiting for people to come to borrow some of the 24,000 books in his library in Carissa. The library had no shortage of books, but people weren’t coming to read them. It was too much effort to walk through the desert just to borrow books. Oluoch racked his brain for ways to entice people into the library. After a lot of thought, he hit upon a great idea. If people wouldn’t come to the library, then he would have to take the library to them. Oluoch strapped boxes of books onto the backs of camels, and created the Mobile Camel Library.

        Starting with three camels in 1996, but more recently expanding the service to six camels, the Mobile Camel Library serves over one million people. Twice a month, the camel library can be seen carrying books all around the Carissa region. These hard-working animals need little water and can carry up to 500 pounds of books across the sands. A librarian, a library assistant, a herdsman, and a lookout all travel with the camels. The lookout helps protect the books from thieves.

        The children of Carissa love the camel library and appreciate Oluoch’s effort. Eleven-year-old Mohamud Mohamed reads his library books carefully and always returns them on time. He knows the Carissa library punishes people for losing books, just like any other library. However, the punishment is very stiff compared to that of other libraries. If a village loses a book, the camel library stops visiting.

(From Reading Challenge 2)

Which of the following is TRUE?

A. 24,000 books are not enough for people in Carissa to read.

B. Oluoch earns a lot of money with his service.

C. In 1996, there were three camels to help run the library

D. In 1996, the library could serve only about one million people.

Dùng ba trong bốn chữ số 0; 2; 3; 5 để ghép thành một số tự nhiên có ba chữ số  sao cho số đó: Chia hết cho 3 và 5.

Read the following passage and mark the letter A, B, C,  D on your answer sheet to indicate the correct answer to each of the questions.

        After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the (26) ______ of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day.

        There are four levels of sleep, each being a little (27) ______ than the one before. As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you (28) _____ the fourth level, your body shifts back and forth from one level of sleep to the other.

        Although your mind slows down, you will dream from time to time. Scientists who study sleep state that when dreaming (29) ______ , your eyeballs begin to move more quickly. This stage of sleep is called REM, which stands for Rapid Eye Movement.

          If you have trouble falling asleep, some people recommend breathing very slowly and deeply. Other people believe that drinking warm milk will make you (30) ______. There is also an old suggestion that counting sheep will put you to sleep!

Điền vào ô 29

A. exists

B. occurs

C. survives

D. appears