This sentence misuses the word "invoke," which means to call upon. The more appropriate word is "evoke," which means to bring forth, to produce. No additional changes are necessary to the sentence. The correct choice is, "His poetry evoked laughter in all, from toddlers to the elderly."

This sentence misuses the word "enervate," which means to weaken. It is clear from the context of this sentence that the subject is looking for something to give him energy. The correct word is "energized," which means to give energy. 

This sentence misuses the word "discrete," which means individual/distinct. The correct word is "discreet," which means cautious/using good judgement and can be interpreted also as secretive. The context of the sentence (use of the word "confidential") tell us this is the correct choice: "discreet."

This sentence misuses the word "illicit," which means illegal. From the context of the sentence, it is clear that the subject wants to bring out or evoke these feelings in his audiences. The correct choice is "elicit," which fits this definition. 

This sentence contains an error in word choice. The word "complement" means to complete. It is clear from the context of the sentence that Kendra intends to give Michael recognition for his effort. The choice that means this is "compliment (with an "i")."

This sentence contains an error in word choice. The word "continually" means to happen constantly, but most importantly is that this word implied that whatever is happening starts and stops. "Continuously," the correct choice, means to go on/never-ending. From the structure of the sentence, it is apparent that the second clause explains whatever word precedes it (hence the colon). The answer is "continuously." 

This sentence misuses the word "systemic," which means affecting an entire system. While it is likely that any changes a CEO makes may be systemic, the key to this sentence are the words "step-by-step," which indicates a plan that will be rolled out in pieces or in a system. The correct choice is "systematic," which means according to plan/arranged into a system.

This sentence misused the word "far." While this word does denote distance, it is in the positive form when the comparative form is necessary in order to compare things, as in this sentence. The correct choice is "farther" which indicates a literal increase in distance. Do not confuse this with "further," which means a figurative increase in distance/progression. Additionally, the word "more" simply indicates an increase in frequency, not distance, and "increased" is too vague. The correct choice is, "farther."

This sentence misuses the word "slander." Though slander does mean a statement(s) harmful to a person's reputation, it specifically applies to spoken statements. Since the sentence states that the statements were published (i.e. written), they cannot be slanderous by definition. The correct word here is "libelous," which refers to written defamatory statements. The correct choice is "libelous."

This sentence misuses the word "averse," which means to dislike. It is clear from the context of the sentence, however, that unintentional/harmful is meant. This is the definition of "adverse." The correct choice is, "adverse."