Correct Answer: C

Rationale: The correct answer is C. The phrase 'what would she do' is incorrect because in English questions, the word order for modal verbs like 'would' should be 'she would do' instead of 'would she do'. The correct structure should be 'her teacher asked her what she would do after she graduated from nursing school.' Choices A, B, and D are used correctly in the sentence and do not contain any errors.

Correct Answer: A

Rationale: The correct answer is A, 'Raised.' In this context, 'elevated' means to be lifted or raised up. The doctor's instruction implies keeping the patient's head in an upward position. Choices B, C, and D are incorrect. 'Turned' suggests a change in direction, 'still' means without movement, and 'thrown back' implies a forceful backward motion, none of which capture the meaning of 'elevated' in this scenario.

Correct Answer: C

Rationale: The sentence implies a cause-and-effect relationship, so 'because' is the appropriate conjunction. 'Nor' is used in negative constructions, 'Yet' indicates contrast, and 'So' is used to show a consequence, none of which fit the context of the sentence.

Correct Answer: A

Rationale: The correct answer is A, 'Toxic.' 'Injurious' means harmful or likely to cause injury, similar to 'toxic.' Choices B, C, and D are incorrect because 'palatable' means pleasant to taste, 'amenable' means cooperative or willing to agree, and 'harmless' means not causing harm.

Correct Answer: A

Rationale: The correct answer is A: 'Plethora.' In the context provided, 'cornucopia' is used metaphorically to signify an abundance or a large variety of stimulating questions and conversation. 'Plethora' is a synonym for 'cornucopia' and means an excessive amount or abundance. Choices B, C, and D are incorrect. 'Ostracism' means exclusion or rejection, 'Laborious' means requiring a lot of effort, and 'Pensive' means engaged in deep thought.