PSAT Writing : Identifying Subject-Verb Agreement Errors
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Example Question #547 : Identifying Sentence Errors
Select the underlined word or phrase that needs to be changed to make the sentence correct. Some sentences contain no error at all.
Many students have trouble learning the order of operations in math, which have led to the creation of many mnemonic devices to help them remember it. No error
math, which
have led to
many mnemonic devices
No error
Many students have
have led to
"Have led" refers to "the order of operations," or more specifically, "order," a singular noun. "Have" is a verb that is used with plural nouns, so it does not agree with the singular "order." To fix the sentence, "have" would need to be changed to "has."
Example Question #63 : Identifying Subject Verb Agreement Errors
Select the underlined word or phrase that needs to be changed to make the sentence correct. Some sentences contain no error at all.
We have all been taught that dinosaurs is a types of reptile that went extinct a long time ago. No error
No error
dinosaurs
is a
have all been
that
is a
"Dinosaurs" is in its plural form, and needs to be accompanied by a verb also in the plural form. Thus, "is a" contains the sentence's error, and should be changed to "are."
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