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Sentence Correction: Pronoun Questions - Overview and Grammatical Mistake

Inhabiting savannas, grasslands, or open woodlands, giraffes are the tallest of all land-living animal species; its average height is about 5 meters.

Well done!

This answer choice corrects the original Pronouns mistake by changing the plural noun giraffes to the singular noun giraffe, so that it agrees with the singular pronoun its (after the underlined part of the sentence).

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Incorrect.

This answer choice is grammatically incorrect: the singular pronoun its (after the underlined part of the sentence) does not agree with the noun it describes, which is plural (giraffes).

[[snippet]]

Incorrect.

This answer choice repeats the original mistake: the singular pronoun its (after the underlined part of the sentence) does not agree with the noun it describes, which is plural (giraffes).

[[snippet]]

Incorrect.

While this answer choice corrects the original mistake, it is still grammatically incorrect as the singular subject giraffe does not agree with the plural verb are

Incorrect.

While this answer choice corrects the original mistake, it replaces the words or open woodlands with open woodlands, thus changing the meaning of the original sentence into an illogical statement. This awkward new sentence suggests that the tallest of all land animal species inhabit the giraffe (!), as well as the other terrain types (the giraffe becomes the fourth item on the list).

or open woodlands, giraffes are the tallest of all land-living
and open woodlands, giraffes are the tallest of all land-living
or open woodlands, the giraffe are the tallest of all land-living
or open woodlands, the giraffe is the tallest of all land-living
open woodlands, and the giraffe is the tallest of all land