Respuesta :
Hello!
In linguistics - expository writing, a topic sentence is a sentence that expresses the main idea of the paragraph in which it occurs. In this case, it's sentences number 1: Overall, my time spent working as a lifeguard has changed my life and shaped my future. It introduces the topic and allows us to have an idea about what the text will be about.
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Answer: Javed restates the topic in sentence 1) "Overall, my time spent working as a lifeguard has changed my life and shaped my future".
Explanation: The conclusion of an essay must restate the thesis, that is to say that it must repeat the main idea or point of the entire piece of writing. It is the first sentence of the conclusion the one that usually restates the topic and the first sentence of the conclusion provided is no exception. In that way, sentence 1) "Overall, my time spent working as a lifeguard has changed my life and shaped my future" is the one that repeats the thesis, which refers to the impact that Javed's job as a lifeguard has had in his life.