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Select from the given options the one that includes a usage error. If all of the options are correct, select "no mistakes."
The correct choice features a very common error of pronoun case, which leads the sentence to incorrectly conclude with a preposition. Rather than using the subjective-case "who" in saying "who I am speaking to," it is correct to use the objective-case "whom." Sentences should never, in academic writing, end with a preposition.
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Select from the given options the one that includes a usage error. If all of the options are correct, select "no mistakes."
The correct answer features inconsistent pronoun usage. Since the sentence first uses the pronoun "one," the sentence must remain consistent in its usage of that pronoun. It is incorrect to follow "one" (when used as a pronoun) with "you." The correct version of the sentence reads, "It is very important to look both ways when one crosses the street because one never knows when a car might come." This question interrogates the principle of consistent pronoun usage. None of the other options included any grammatical errors.
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Select from the given options the one that includes a usage error. If all of the options are correct, select "no mistakes."
The possessive pronouns "hers," "his," "yours," "its," "ours," and "theirs" are never used with apostrophes. None of the other given options contained any grammatical errors.
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Select from the given options the one that includes a usage error. If all of the options are correct, select "no mistakes."
The example sentence expresses a hypothetical condition that is contrary to fact ("I," by definition, am not "you"); therefore the thought needs to be expressed using verbs in the subjunctive mood. "If" is a usually a good indication that a sentence will be in the subjunctive mood. In the subjunctive, "were" should be used instead of "was." "If I were you, I would leave that job immediately."
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Select from the given options the one that includes a usage error. If all of the options are correct, select "no mistakes."
The example sentence erroneously uses an adjective where an adverb is needed. "Bitter," in this context, modifies the verb "was," and therefore should be replaced by the adverb "bitterly." If the cold were being used as a noun, then the adjective form of "bitter" would be appropriate—for example, "We were wrapped in a bitter cold."
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