Answer:-
The sentence "The book that I borrowed from the library is due tomorrow" contains a restrictive clause. This clause, "that I borrowed from the library," is essential for understanding which book is being referred to. It restricts or narrows down the meaning of the noun it modifies (book) by specifying a particular book among others. In this case, it clarifies that it's not just any book but specifically the one borrowed from the library. Restrictive clauses are crucial for providing specific information and avoiding ambiguity in sentences.
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