The teacher said to class, “We’ll discuss this subject tomorrow.” A. The teacher told the class they will discuss that subject the next day. Correct answer B. The teacher told the class they will discuss that subject the next day. C. The teacher said the class they will discuss that subject the next day. D. The teacher told the class they will discuss that subject tomorrow.


The teacher said to the class: “Tomorrow we will discuss this topic.” A. The teacher told the class that they would discuss that topic tomorrow. B. Grammatical errors, tenses not reversed. C. Wrong grammar, must use told. D. Grammatical error, the adverbial of time has not been changed. → Choose answer A

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hoc tap vn

Sách bài tập Toán 11 Bài 6 (Cánh diều): Hình lăng trụ đứng. Hình chóp đều. Thể tích của một số hình khối

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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 answer to each of the following questions. When corals are mentioned, many people think of rock-life forms in the sea filled with colorful fish. But corals are made up of hundreds of thousands of small organisms which live and feed like any other sea life. For the past five years, researchers in Hawaii and Australia have been engineering corals inside a lab to see if they could better resist the effects of climate change. They say it is now time to see how their creations perform in nature. The scientists say climate change linked to human causes has led to warming oceans that can harm sea life. They say if the more heat-resistant corals they developed do well in the ocean, the method can be used to help save suffering and dying reefs. The team tested three methods for making corals that would be strong and healthy in nature. One was the method of selective breeding. This method involves choosing parents with desirable characteristics for reproductive purposes. A second method subjected the corals to increase temperatures to condition them to be able to survive in warm ocean environments. The third involved making changes to the algae that provide corals with necessary nutrients. The leader of the project, University of Hawaii researcher Kira Hughes, said all the methods proved successful in the lab. She told The Associated Press that some scientists might worry that such methods go against the natural processes of nature. But with the planet continuing to warm more and more, she does not see any better options. "We have to intervene in order to make a change for coral reefs to survive into the future," Hughes said. When ocean temperatures rise, corals release algae that supplies nutrients and gives them color. This causes them to turn white, a process called bleaching. When this happens, corals can quickly become sick and die. But for years, scientists have been observing corals that have survived bleaching, even when others have died on the same reef. They are now focusing on those healthy survivors and hoping to further increase their resistance to heat. Those corals were used as the parents for the newly created kinds. ( What is the main idea of ​​the passage? – Question and Answer English online

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