Correct Answer: D

Rationale: The correct answer is D: At a Parent-Teacher meeting. A Parent-Teacher meeting is a formal setting where professional communication is expected. Using formal language in this context shows respect and professionalism. Choices A, B, and C involve informal or casual situations where using formal language may not be necessary or appropriate. Texting a friend, attending a family reunion, or Skyping with grandparents are typically more informal interactions where a more relaxed communication style is acceptable.

Correct Answer: B

Rationale: The correct answer is 'B: baby.' In the sentence, 'baby' is the context clue that helps define the multiple meaning word 'formula.' Here, 'formula' refers to baby food, as babies typically consume formula. The word 'baby' directly relates to the context of feeding a baby with formula. Choice A, 'mother,' is not directly related to the meaning of 'formula' in this context. Choices C and D, 'nap' and 'car,' are also not directly connected to the meaning of 'formula' as they do not provide any relevant information about the word's meaning in this sentence.

Correct Answer: D

Rationale: The correct answer is 'D: Sleepwalker.' A somnambulist is someone who walks or performs other activities while asleep, commonly known as a sleepwalker. In the given sentence, the context of waking up outside in pajamas in the middle of the night indicates an occurrence associated with sleepwalking. Choice A, 'Explorer,' is incorrect as it does not relate to the behavior described. Choice B, 'Magician,' is not related to the context of sleepwalking. Choice C, 'Insomniac,' refers to a person who has difficulty falling asleep or staying asleep, which is not the meaning conveyed in the sentence. Therefore, 'D: Sleepwalker' is the most appropriate choice based on the context clues provided.

Correct Answer: B

Rationale: The best definition of the word 'veritable' is 'Genuine.' Veritable means real or authentic, not exaggerated or forceful. 'Noble' refers to having high moral qualities or excellent character, which is unrelated to the meaning of 'veritable.' 'Forceful' describes something having a strong impact or effect, which is not synonymous with 'veritable.' 'Exaggerated' means to represent something as being larger, greater, better, or worse than it really is, which is opposite in meaning to 'veritable.' Therefore, 'Genuine' is the correct choice as it aligns best with the definition of 'veritable.'

Correct Answer: B

Rationale: The correct answer is 'I will be unable to come to your party.' This sentence uses formal language by avoiding contractions and employing a more polished wording. Choice A, 'I can't come to your party,' contains a contraction ('can't'), which makes it less formal. Choice C, 'I won't be able to go to your party,' though polite, still uses a contraction ('won't') and is not as formal as the correct answer. Choice D, 'I can't go to your party,' also includes a contraction and is less formal compared to the most formal choice, which is option B.