In this sentence, the subject ("university") is modified by the parenthetical phrase "along with many other schools." This should not cause you to lose track of the fact that "university" is the single subject of the sentence, and as such the verb phrase must match it in number. Mentally taking out the modifying phrases leaves the subject-predicate "That university have made," which is obviously incorrect. Therefore, the correct answer is "have made," which should be changed to "has made."

"Are" should be changed to "is" because "each" is a singular noun. Think of "each" as "every one" or "each one" if it helps you to remember that "each" is singular and therefore pairs with "is" instead of "are."

"Are" should be "is." This might seem tricky, because the word right before it is "meals," which is plural, but what is impressive is not the meals but the "quality" of the meals, which is a singular noun, so it needs the singular "is."

Here’s a subtle error in subject-verb agreement. The subject of this sentence is “Mt. McKinley,” a singular noun, and not “the other peaks.” Therefore, the correct conjugation of the verb “to be” is “is,” not “are.” In other words, “Mt. McKinley . . . is nearly impossible to climb.”

The subject, "the book of fairy tales" is singular, as the phrase refers to a single book. The fact that there are multiple "tales" within the book does not make the subject plural. The corresponding verb in this case should be "is," not "are."

The word "need" refers to "each one" of the students. "Each one" is singular, and thus, the form "needs" is appropriate, even though the existence of twenty students may be misleading. "Needed" would be the correct replacement for this sentence.

This sentence includes several tricky word usages, but only one underlined choice is actually incorrect. "Have led" is an entirely legitimate use of the perfect present tense: the choices the speaker has made over time led up to this moment. "Fell" is used here in an unusual adjective form, which means "fierce, cruel, or terrible." "We've" is momentarily tempting, since we're used to seeing "we've" used in perfect tenses, and points to the correct answer because "we've no choices remained" sounds strange. Expanding the contraction, however, clarifies the meaning: restating it as "we have no choices remained" makes it clearer that "remained" should be "remaining."

"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."

"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."

The verb “are” does not agree in number with its singular subject “bald eagle.” The corrected sentence reads: The bald eagle, a symbol of American freedom and justice, is no longer considered to be threatened.