A.I. Explanation:

Correct answer: shook

Explanation: The verb 'shook' fits grammatically as the past tense of 'shake,' which is appropriate here since the action occurred in the past. It also contextually aligns with the action of greeting someone by shaking hands, which is a common social gesture.

Meaning: 'Shook' is the past tense of 'shake,' meaning to move one's hand up and down or back and forth in greeting or agreement.

Wrong options:

• moved: 'Moved' does not specifically indicate the action of greeting someone and is too vague in this context.
• waved: 'Waved' implies a different gesture, typically a hand movement to signal or greet from a distance, not a handshake.
• touched: 'Touched' lacks the specific connotation of a handshake and suggests a more casual or intimate contact, which does not fit the formal context.

Correct answer: introduction

Explanation: The noun 'introduction' is the correct choice as it refers to the act of presenting someone to another, which aligns perfectly with the context of showing someone around the hospital. It is grammatically correct as it fits the structure of the sentence.

Meaning: 'Introduction' means the act of making someone known to another person, especially in a formal setting.

Wrong options:

• acquaintance: 'Acquaintance' refers to a person one knows slightly, which does not fit the context of formally presenting someone.
• presentation: 'Presentation' implies a formal display or demonstration, which is not the intended meaning in this context.
• establishment: 'Establishment' refers to the act of setting up or founding something, which does not relate to the act of introducing someone.

Correct answer: consisted

Explanation: The verb 'consisted' is appropriate here as it indicates what the party was made up of, fitting grammatically and contextually. It correctly describes the composition of the group mentioned in the sentence.

Meaning: 'Consisted' means to be made up of or composed of certain elements or members.

Wrong options:

• comprised: 'Comprised' is often misused; the correct form would be 'was comprised of,' making it less suitable here.
• composed: 'Composed' is similar to 'consisted' but is less commonly used in this context and can imply a more artistic or structured formation.
• contained: 'Contained' suggests holding something within, which does not accurately describe the composition of the party.

Correct answer: contribution

Explanation: The noun 'contribution' fits well as it refers to the act of giving or adding something, which aligns with the context of the ward sister's role in the group. It is grammatically correct and contextually relevant.

Meaning: 'Contribution' means something that is given or added to a situation or group, often to help or enhance it.

Wrong options:

• repitition: 'Repitition' is a misspelling of 'repetition,' which refers to doing something again, not fitting the context of making an input or addition.
• interruption: 'Interruption' implies breaking into a conversation or activity, which is contrary to the intended meaning of not adding anything.
• intervention: 'Intervention' suggests intervening in a situation, which does not align with the passive role described for the ward sister.

Correct answer: intently

Explanation: The adverb 'intently' is the correct choice as it describes the manner in which Yealland stared, indicating a focused and concentrated gaze. It fits grammatically and contextually within the sentence structure.

Meaning: 'Intently' means with earnest and eager attention, suggesting a deep focus on the person he is conversing with.

Wrong options:

• thoughtfully: 'Thoughtfully' implies deep thinking or consideration, which does not capture the focused intensity of Yealland's gaze.
• diligently: 'Diligently' suggests careful and persistent effort, which is not applicable to the context of staring.
• emotionally: 'Emotionally' refers to feelings and does not fit the context of a focused gaze.

Correct answer: authority

Explanation: The noun 'authority' is appropriate as it refers to the power or right to give orders, make decisions, and enforce obedience, fitting the context of Yealland's presence. It is grammatically correct and contextually relevant.

Meaning: 'Authority' means the power or right to give orders or make decisions, often associated with a commanding presence.

Wrong options:

• weight: 'Weight' refers to heaviness or importance, which does not fit the context of Yealland's commanding presence.
• might: 'Might' implies power or strength but lacks the specific connotation of control or command that 'authority' provides.
• charge: 'Charge' can imply responsibility or control but does not convey the same level of formal power as 'authority' does.