PSAT Writing : Correcting Conjunction Errors
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Example Question #5 : Correcting Subordinating Conjunction Errors
Replace the underlined portion with the answer choice that results in a sentence that is clear, precise, and meets the requirements of standard written English. One of the answer choices reproduces the underlined portion as it is written in the sentence.
Prisons are a relatively recent phenomenon in world history, because exorbitant costs.
exorbitant costs.
because exorbitant costs of prisons.
because they have exorbitant costs.
because exorbitant costs.
because exorbitant cost.
because they have exorbitant costs.
The underlined phrase, a separate clause further explaining the first half of the sentence, does not work as a complet sentence. In order to appropriately fit after "because," the phrase needs to be turned into a complete thought. "Because they had exorbitant costs" is the best choice among the answers.
Example Question #2 : Correcting Subordinate Conjunction Errors
Replace the underlined portion with the answer choice that results in a sentence that is clear, precise, and meets the requirements of standard written English.
Some prescription drugs can produce dangerous interactions when combined with other chemicals, and you should always tell your physician about any medications you take at home.
and you should always tell your physician about any medications you take at home.
although you should always tell your physician about any medications you take at home.
so you should always tell your physician about any medications you take at home.
and you should always be telling your physician about any medications you take at home.
but you should always tell your physician about any medications you take at home.
so you should always tell your physician about any medications you take at home.
This sentence contains an error in its logic of cause and effect. The first part of the sentence is the reason for the advice offered in the second part. So, you should change "and" to a word that demonstrates the cause-and-effect relationship. Do not add a contrast word like "but" or "although" unless the sentence includes some sort of contradiction or opposition.
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