The story is set in New York many years after an apocalypse and communities have formed in the area forest and hills
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The function of the infinitive phrase in the sentence <em>To win a marathon is my goal </em>is object of the verb.
It is definitely an object, and it would follow a verb if it were a normal ordering of words in the sentence (My goal is to win a marathon), and since it is not preceded by a preposition, it cannot be object of the preposition, but of a verb.
Answer:
The electromagnets are the magnets which shows magnetic properties when the electric current pass through them. They are temporary magnets, they can be turned on or off when desired. Moreover, large amounts of scrap steel can be moved easily from one place to another with electromagnets.
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That is the best book that I ( have read )on that subject.
reason = because that event has already happend in past but its impact is still on present so it is past perfect..........