Người Chăm đã có sáng tạo tiêu biểu trong quá trình sản xuất nông nghiệp đó là A. Dùng xe guồng nước đề đưa nước từ sông, suối lên ruộng. B. Làm ruộng bậc thang ở sườn đồi núi. C. Sử dụng công cụ sắt để cày bừa D. Dùng trâu bò kéo cày, bừa.

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21 Read the following passage and answer the questions that follow. Thomas Alva Edison was born in Ohio in 1847. As a child, he received less than a year of formal schooling, but was educated at home. His parents allowed him to set up a laboratory in their basement and his mother gave him books about chemistry and electronics. Edison credits his mother as being ‘the making’ of him. In 1878, Thomas Edison began serious research into developing a practical incandescent lamp and on October 14, 1878, Edison filed his first patent application for “Improvement in Electric Lights”. In 1879, he created a successful incandescent light bulb. This was his hardest project – from 1877 to 1880, Edison and his assistants tried around 3000 experiments to perfect their light bulb design. By the end of 1880, Edison had produced a bulb that lasted 1500 hours. This discovery marked the beginning of commercially manufactured light bulbs and in 1880, Thomas Edison’s company; Edison Electric Light Company began marketing its new product. Question: How many hours did the 1880 bulb last? A. 1880 B. 3000 C. 1878 D. 1500 22 Read the following passage and answer the questions that follow. Thomas Alva Edison was born in Ohio in 1847. As a child, he received less than a year of formal schooling, but was educated at home. His parents allowed him to set up a laboratory in their basement and his mother gave him books about chemistry and electronics. Edison credits his mother as being ‘the making’ of him. In 1878, Thomas Edison began serious research into developing a practical incandescent lamp and on October 14, 1878, Edison filed his first patent application for “Improvement in Electric Lights”. In 1879, he created a successful incandescent light bulb. This was his hardest project – from 1877 to 1880, Edison and his assistants tried around 3000 experiments to perfect their light bulb design. By the end of 1880, Edison had produced a bulb that lasted 1500 hours. This discovery marked the beginning of commercially manufactured light bulbs and in 1880, Thomas Edison’s company; Edison Electric Light Company began marketing its new product. Question: What does the word “its” in the last sentence refer to? A. Thomas Edison’s company B. Thomas Edison’s invention C. Thomas Edison’s discovery D. Thomas Edison’s patent 23 Read the following passage and answer the questions that follow. Thomas Alva Edison was born in Ohio in 1847. As a child, he received less than a year of formal schooling, but was educated at home. His parents allowed him to set up a laboratory in their basement and his mother gave him books about chemistry and electronics. Edison credits his mother as being ‘the making’ of him. In 1878, Thomas Edison began serious research into developing a practical incandescent lamp and on October 14, 1878, Edison filed his first patent application for “Improvement in Electric Lights”. In 1879, he created a successful incandescent light bulb. This was his hardest project – from 1877 to 1880, Edison and his assistants tried around 3000 experiments to perfect their light bulb design. By the end of 1880, Edison had produced a bulb that lasted 1500 hours. This discovery marked the beginning of commercially manufactured light bulbs and in 1880, Thomas Edison’s company; Edison Electric Light Company began marketing its new product. Question: What is the main idea of the passage? A. Family of Thomas Edison B. A brief history of the light bulb C. The early life of Thomas Edison D. Thomas Edison's company

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18 Choose the best answer A, B, C or D to complete the following sentences. This ancient cathedral __________ by two archeologists in 1988. A. had discovered B. was discovered C. discovered D. is discovered 19 Read the following passage and answer the questions that follow. Thomas Alva Edison was born in Ohio in 1847. As a child, he received less than a year of formal schooling, but was educated at home. His parents allowed him to set up a laboratory in their basement and his mother gave him books about chemistry and electronics. Edison credits his mother as being ‘the making’ of him. In 1878, Thomas Edison began serious research into developing a practical incandescent lamp and on October 14, 1878, Edison filed his first patent application for “Improvement in Electric Lights”. In 1879, he created a successful incandescent light bulb. This was his hardest project – from 1877 to 1880, Edison and his assistants tried around 3000 experiments to perfect their light bulb design. By the end of 1880, Edison had produced a bulb that lasted 1500 hours. This discovery marked the beginning of commercially manufactured light bulbs and in 1880, Thomas Edison’s company; Edison Electric Light Company began marketing its new product. Question: When was Edison born? A. In 1878 B. In 1500 C. In 1847 D. In 1877 20 Read the following passage and answer the questions that follow. Thomas Alva Edison was born in Ohio in 1847. As a child, he received less than a year of formal schooling, but was educated at home. His parents allowed him to set up a laboratory in their basement and his mother gave him books about chemistry and electronics. Edison credits his mother as being ‘the making’ of him. In 1878, Thomas Edison began serious research into developing a practical incandescent lamp and on October 14, 1878, Edison filed his first patent application for “Improvement in Electric Lights”. In 1879, he created a successful incandescent light bulb. This was his hardest project – from 1877 to 1880, Edison and his assistants tried around 3000 experiments to perfect their light bulb design. By the end of 1880, Edison had produced a bulb that lasted 1500 hours. This discovery marked the beginning of commercially manufactured light bulbs and in 1880, Thomas Edison’s company; Edison Electric Light Company began marketing its new product. Question: Where was Edison’s laboratory? A. in the city B. in their basement C. at his school D. in a company

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10 Choose the best answer A, B, C or D to complete the following sentences. Look at your weekly schedule. Your presentation __________ at 9.45. Don’t be late, please. A. had started B. starts C. has started D. is starting 11 Choose the best answer A, B, C or D to complete the following sentences. The man said that he __________ from Bulgaria. A. came B. come C. will come D. is coming 12 Choose the best answer A, B, C or D to complete the following sentences. If we __________ soon, the pollution will get much worse. A. didn’t act B. don’t act C. hadn’t act D. won’t act 13 Choose the best answer A, B, C or D to complete the following sentences. Before he did his homework, he __________ a TV show. A. is watching B. watched C. had watched D. watches 14 Choose the best answer A, B, C or D to complete the following sentences. We would take part in the competition if the prize __________ bigger. A. might B. may C. were D. is 15 Choose the word that differs from the other three in the position of stress in each of the following questions. The students __________ for an exam at this time next week. A. will sit B. will be sitting C. are going to sit D. are sitting 16 Choose the best answer A, B, C or D to complete the following sentences. Lena enjoys __________ on the phone with her friends. A. to chatting B. chat C. to chat D. chatting 17 Choose the best answer A, B, C or D to complete the following sentences. Bobby asked me __________ I liked collecting stamps. A. as B. what C. whether D. though

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