A.I. Explanation:

Correct answer: Prior

Explanation: The word 'Prior' indicates something that happened before another event, which fits grammatically and contextually as it introduces David Lynch's previous role before his current position. It aligns with the past tense used in the sentence.

Meaning: 'Prior' means 'before' or 'earlier in time,' indicating that his role as sub-dean occurred before his current position.

Wrong options:

• Started: 'Started' implies the beginning of an action, which does not fit the context of describing a previous role.
• Across: 'Across' suggests a spatial relationship and does not relate to the temporal context required here.
• Simple: 'Simple' describes something that is easy or uncomplicated, which does not fit the context of discussing a previous position.

Correct answer: campus

Explanation: The term 'campus' refers to the grounds and buildings of a university, making it the appropriate choice in this context as it describes a specific location related to the university mentioned.

Meaning: 'Campus' refers to the physical grounds of a university or college, where educational activities take place.

Wrong options:

• launch: 'Launch' refers to the act of starting something, which does not fit the context of a physical location.
• hall: 'Hall' typically refers to a large room or building used for meetings or events, which is not the correct term for a university setting in this context.
• place: 'Place' is a general term for a location and lacks the specificity required to describe a university setting.

Correct answer: progressed

Explanation: The word 'progressed' indicates advancement or development, which fits grammatically and contextually as it describes David's career development from a teacher to principal positions.

Meaning: 'Progressed' means to move forward or advance in a career or situation, indicating his growth in the education field.

Wrong options:

• referred: 'Referred' means to mention or direct attention to something, which does not convey the idea of career advancement.
• rested: 'Rested' implies taking a break or pause, which contradicts the idea of moving forward in a career.
• preferred: 'Preferred' indicates a choice or liking for something, which does not fit the context of career advancement.

Correct answer: entering

Explanation: The word 'entering' indicates the action of beginning a new phase, which fits grammatically and contextually as it describes David's transition into higher education.

Meaning: 'Entering' means to begin or start a new phase or level, in this case, moving into higher education.

Wrong options:

• going: 'Going' is a general term for movement and does not specifically indicate the transition into a new field of education.
• seperating: 'Separating' implies a division or disconnection, which does not fit the context of moving into a new educational role.
• interacting: 'Interacting' refers to communication or engagement with others, which does not relate to the transition into higher education.