tailieunhanh - Test Tiếng anh_ Phần 6

Tài liệu tham khảo ôn thi tiếng anh_ Phần 6, dành cho các bạn đam mê ngoại ngữ, và đặc biệt dành cho các bạn đang chuẩn bị du học. | For more material and information please visit Tai Lieu Du Hoc at www. tailieuduhoc. org Part I 1. Dairy farming is leading agricultural activity in the United States. A a B at C then D none 2. Although thunder and lightning are produced at the same time light waves travel faster so we see the lightning before we hear the thunder. A than sound waves do B than sound waves are C do sound waves D sound waves 3. Beef cattle of all livestock for economic growth in certain geographic regions. A the most are important B are the most important C the most important are D that are the most important 4. The discovery of the halftone process in photography in 1881 made it photographs in books and newspapers. A the possible reproduction B possible to reproduce C the possibility of reproducing D possibly reproduced 5. Flag Day is a legal holiday only in the state of Pennsylvania Betsy Ross sewed the first American flag. A which B where C that D has For more material and information please visit Tai Lieu Du Hoc at www. tailieuduhoc. org 6. vastness of the Grand Canyon it is difficult to capture it in a single photograph. A While the B The C For the D Because of the 7. Speciation results when an animal population becomes isolated by some factor usually geographic. A form biological species B biological species are formed C which forming biological species D the formation of biological species 8. In this pure state antimony has no important uses but with other substances it is an extremely useful metal. A when combined physically or chemically B combined when physically or chemically C the physical and chemical combination D it is combined physically and chemically 9. The dawn redwood appears some 100 million years ago in northern forests around the world. A was flourished B having to flourish C to have flourished D have flourished 10. Beginning in the Middle Ages composers of Western music used a system of notating their compositions be performed by musicians A will B that C and .