GED Reasoning Through Language ArtsLanguage Conventions and UsageMedium

A student is proofreading an essay and encounters a sentence that needs an apostrophe to show possession. Which sentence correctly uses an apostrophe to indicate possession?

  1. AThe students's grades improved significantly after consistent study.
  2. BThe students' improved significantly after consistent study.
  3. CThe students grades improved significantly after consistent study.
  4. DThe student's grades improved significantly after consistent study.
Show answer & explanation

Correct answer: D. The student's grades improved significantly after consistent study.

To show possession for a singular noun, an apostrophe followed by an 's' is used (student's). For plural nouns ending in 's', only an apostrophe is added after the 's' (students'). Option A correctly shows singular possession.

Why the other options are wrong

  • A. This option incorrectly adds an extra 's' after the apostrophe for a singular possessive.
  • B. This option uses a plural possessive 'students'' but the sentence structure implies singular possession ('The students' improved') and is grammatically incomplete in this context.
  • C. This option lacks an apostrophe, indicating a plural noun 'students' instead of singular possessive.

Apostrophe for Possession

An apostrophe is used with an 's' to show that a noun owns or possesses something. The placement of the apostrophe depends on whether the noun is singular or plural.

  • Singular noun: add 's (e.g., cat's toy).
  • Plural noun ending in 's': add ' after the 's' (e.g., cats' toys).
  • Plural noun not ending in 's': add 's (e.g., children's books).
  • Do not use apostrophes for plural nouns that are not possessive (e.g., two cats).

Memory trick: Apostrophes show ownership or contraction, never just plurals.

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