Question

Correct the sentence at the underlined point.
The Library of Congress system of classification has gradually replaced the Dewey Decimal in libraries across the world.
(A) that of the Dewey Decimal
(B) Those of the Dewey decimal
(C) Dewey Decimal
 (D) no change

Answer 1

Hint: A complete sentence is correct only if you are applying grammar rules correctly. Nouns, adjectives, adverbs, prepositions, conjunctions, pronouns, proverbs, exclamations are parts of speech. A determiner is a word that introduces nouns. If we are using ‘that’ as a determiner, it always comes before a noun and also before any adjective used to describe the noun.

Complete answer:
That is a word very useful in both writing and speaking. We use that as a determiner, a demonstrative pronoun, a relative pronoun, and also as a conjunction.
Can you pass me that pen over there?. (determiner)
Why don't you come at around 4 pm? That’ll give me more time to finish my work. (refer back to something )
She picked up the notebook that she left on the table. (relative pronoun)
In the above sentence, we are talking about the system of classification of the library of congress and the Dewey decimal. Here sentence is saying the system of classification of the library of congress is to be replaced by the system of classification of Dewey Decimal.
Here we use that to refer back to the entire sentence.so, we use that to replace the phrase ‘system of classification’ in the second half of the given sentence.
We cannot use other options because if we omit ‘the‘ from the sentence this will not correct the sentence so option (c) is incorrect.Option(B) is incorrect because ‘those’ is a plural noun and we are comparing singular nouns (the system of classification) so, we need a singular demonstrative pronoun.

Note:
’That’ Can be used as a determiner, a demonstrative pronoun, a relative pronoun, and also as conjunction. In the above sentence, we use ‘that’ to give reference to something which has already been discussed.
So, the correct answer is option (A)- That of the Dewey Decimal.
The Library of Congress system of classification has gradually replaced that of the Dewey Decimal in libraries across the world.