The corrected paragraph describes the characteristics of the friend David and his behavior in school.
David, my friend, is one of the most careless people I know. He is tall and slim with black hair, and he always wears a T-shirt and black jeans. His jeans have holes in them, and his baseball boots are shabby. He usually sits at the back of the class. However, when the exam results are published, he always gets an 'A.' I don't think he's as lazy as he appears to be. Wow, what a talented fellow he is. Once I asked him, 'Why do you always sit on the back bench?' He responded that nobody would notice him reading all the time on the back bench.
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