Re-write the following sentences after changing them to the tense form given in brackets. a. Tom knew him for a long time. (Present perfect tense)
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b. He wrote a novel in two months. (Past perfect continuous tense)
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c. I saw him last five years ago. (Past perfect tense)
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d. I will be coaching the football team for ten years next March. (Future perfect continuous tense)
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e. The athletes left for Canada. (Future Simple)
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f. The delivery man has delivered the parcel. (Present simple)
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Read the excerpt from "death by black hole."albert einstein's general theory of relativity, published in 1916, provides the insight to understand the bizarre structureof space and time in a high-gravity environment. later research by the american physicist john a. wheeler, and others, to formulate a vocabulary as well as the mathematical tools to describe and predict what a black hole will do toits surroundings.read the excerpt from "man listening to disc."and i bow deeply to thelonious monkfor figuring out a wayto motorize or whatever-his huge pianoso he could be with us today.these excerpts are similar because both texts

Wha is the topic discussed in “lifeboat ethics” ?

What is mostly clearly a disadvantage of living in a world dominated by the presence of televisions according to niel postman?