Which of the following is the correct spelling?

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

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.

The adverb "swiftly" describes how the woman ran, indicating the manner or speed of the action.

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.

"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.

This sentence uses commas correctly to separate items in a list (Keisha, Marius, and Jayma) and sets off the introductory phrase "In short" with a comma.

The prefix "mis-" means "incorrectly" or "badly." "Misalign" refers to aligning something incorrectly. Prefixes change the meaning of root words. For example, if car wheels are "misaligned," they are improperly positioned, potentially affecting driving performance. The other options contain prefixes with different meanings, such as "ir-" for "not" and "down-" indicating a reduction.

This sentence is complete because it contains a subject ("Matt") and a predicate ("spent most of the summer training for the marathon"), forming a complete thought. The other options are fragments that lack essential sentence elements. Option A is a fragment due to the missing main verb. Option C lacks a conclusion after the dependent clause. Option D has no main clause to form a grammatically correct sentence.

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 "post-" indicates something that comes after or is subsequent to a particular event or time. It is often used to denote a sequence of events.