Giúp e với VI. Read the passage carefully, then answer the questions: There is only one ocean. It divided into five different pasts: the Pacific, Atlantic, Indian, Antarctic and Arctic Oceans. There are also many other smaller seas, gulfs and bays which form part of them. Altogether they cover seventy-five percent of the earth’s surface. For centuries, people have been challenged by the mysteries that lie beneath the ocean. However, today’s scientists have overcome many of the challenges of the depth by using modern devices. They send submarines to investigate the seabed and bring samples of marine life back to the surface for further study. Satellite photographs provide a wide range of information, including water temperature, depth and undersea populations. If modern technology did not exist, we would never have such precious information. *questions: 1. How do scientists now get over the difficulties of the depth? 2. What percentage of the earth’s surface is covered by seas and oceans? 3. What can submarines do to help scientists know about the undersea world? 4. What can we learn from the satellite photos? 5. What is the best title for this passage ? D. WRITING VII. Rewrite the following sentences so that the second sentence has a similar meaning to the first, beginning with the given words. 1. “ I must go to school now”, Nam said.>Nam said he …………... 2. I didn’t arrive in time to see her.>I wasn’t …………………... 3. “ Don’t forget to buy some milk, Andy”, said Clare.>Clare reminded ………... 4. They believed that the man escaped in a stolen car.>The man was …………….. 5. It isn’t necessary for you to call for help.>You ………………. 6. I will call the police if you don’t leave me alone.>Unless ………. 7. It’s a pity I didn’t take my doctor’s advice.>I wish ………….. 8. We will have a vacation that lasts for three months.>We will ……