Multiple choice

Directions: Choose the correct article, where necessary, to complete the sentence:

Which is ____ longest river in India?

  1. a

  2. an

  3. the

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When identifying the single longest item in a category (the longest river, the tallest building, the deepest ocean), we use 'the' with the superlative form. 'The longest river' is correct because there is only one longest river, making it unique and definite. 'A' or 'an' would incorrectly suggest there are multiple longest rivers.

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