Which of the following sentences demonstrates proper subject-verb agreement?

Take a sec, playing firefighter, Hey, gang!phrases are more casual and colloquial, which might be suitable for internal communication within a team but may not be as appropriate in a formal business setting.

"Similarly" is a transitional expression that indicates a similarity or parallel between ideas. It is commonly used to show a sequence of events or actions that are alike or comparable.

"The boy or the girls come to school late," the verb "come" correctly agrees with the plural subject "girls" since the presence of either the boy or the girls triggers a plural verb.

"Conscientious" means being careful, diligent, and guided by a strong sense of responsibility. The correct spelling includes the root "science," derived from the Latin word "scire," meaning "to know." The other options are misspellings that do not match the correct form of the word.

The conjunction in this sentence is "and," which connects two independent clauses, indicating a relationship between the actions of finishing mowing the lawn and taking a long nap.

Informal language is typically suitable for casual and personal communication, such as text messages to friends. In more formal settings, like a job application, peer review, or an email to a professor, it is generally more appropriate to use formal language.

The prefix "re-" indicates repetition or duplication, often suggesting the idea of doing something again.

An adjective is a part of speech used to describe, qualify, or modify a noun. It provides more information about a noun by describing its size, shape, color, quantity, or quality. For example, in the sentence "She wore a beautiful dress," the word "beautiful" is an adjective because it describes the noun "dress." Adjectives help make writing more vivid and specific.

The Correct answer is A. This is because the word “Crucial” is spelled right

In this sentence, the adverb "slowly" is used correctly to modify the verb "wrote," indicating the manner in which the student wrote. Additionally, the adjective "slow" is appropriately used to describe the writer in the second part of the sentence.