Sentence Correction: Parallelism Questions - Overview

While scholars debate the significance of social and economic factors leading to the industrial revolution, there can be no doubt that technological innovations such as the spinning jenny, the power loom, smelting pig iron with coke in blast furnaces, and the steam engine played a key role.

Incorrect.

This answer choice is grammatically incorrect. The first, second, and last items in the of the sentence are nouns (jenny, loom, engine), but the third item is a verb (smelting).

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Incorrect.

While this answer choice corrects the parallelism mistake in the original question of the sentence, by changing the verb smelting to the noun furnace it changes the meaning of the original question.

The original question lists the action or process of smelting as a central technological innovation of the Industrial Revolution, whereas the corrected sentence lists the furnaces (in which the process takes place) as an innovation. However, blast furnaces may have already existed prior to that time, while they were now put into new use.

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Incorrect.

While this answer choice corrects the Parallelism mistake in the original sentence, by changing the verb smelting to the noun phrase blast furnaces that were used in order to smelt pig iron with coke, it is too wordy.

Look for another answer choice that achieves the same result more concisely.

Well done!

This answer choice corrects the Parallelism mistake in the original sentence, by changing the verb smelting (pig iron) to the noun phrase the blast furnaces used for smelting thus correcting the parallelism both grammatically and logically.

The sentence uses parallelism to list technological innovations. The sentence lists four machines (spinning jenny, power loom, steam engine, and blast furnaces used for smelting) that were newly invented during the industrial revolution.

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Incorrect.

This answer choice repeats the parallelism mistake in the original question. The first, second and last items in the list of the sentence are nouns (jenny, loom, engine), but the third item is a participle phrase (pig iron being smelt).

In addition, the use of the V+ing form being is awkward.

smelting pig iron with coke in blast furnaces

the blast furnaces for smelting pig iron with coke

blast furnaces that were used in order to smelt pig iron with coke

the blast furnaces used for smelting pig iron with coke

pig iron being smelt in blast furnaces with coke

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