Meaning: 'Extra' means additional or more than what is usual, emphasizing that students require more income to support their expenses.

Wrong options:

• plus: 'Plus' is a conjunction that indicates addition but does not function as an adjective to describe income in this context.
• other: 'Other' implies an alternative but does not convey the idea of additional income needed for support.
• more: 'More' suggests a greater quantity but lacks the specificity of being an additional amount in this context.
• super: 'Super' is an informal term that does not appropriately describe income in a formal context.

Correct answer: gain

Explanation: The verb 'gain' is appropriate here as it indicates acquiring skills, which fits the context of students developing competencies through part-time work. It aligns with the grammatical structure of the sentence, which requires a verb that conveys the action of obtaining skills.

Meaning: 'Gain' means to acquire or obtain something, in this case, skills that are beneficial for life after education.

Wrong options:

• need: 'Need' implies a requirement rather than an action of acquiring, which does not fit the context of skill development.
• reach: 'Reach' suggests arriving at a destination or goal, which does not accurately describe the process of acquiring skills.
• make: 'Make' is too vague and does not specifically convey the idea of acquiring skills in a meaningful way.
• train: 'Train' implies a process of learning but does not fit grammatically as it does not align with the context of gaining skills.

Correct answer: debt

Explanation: The noun 'debt' is the correct choice as it refers to the amount of money owed, which is relevant to the context of financial obligations after graduation. It fits grammatically as it is the object of the verb 'reduces' in the sentence.

Meaning: 'Debt' refers to money that is owed or due, highlighting the financial burden students may face after completing their studies.

Wrong options:

• bank: 'Bank' refers to a financial institution and does not fit the context of what students owe after graduation.
• surplus: 'Surplus' indicates an excess amount, which is the opposite of what is being discussed regarding financial obligations.
• account: 'Account' refers to a financial record and does not convey the idea of owed money in this context.
• money: 'Money' is too general and does not specifically indicate the owed amount that 'debt' conveys.

Correct answer: limit

Explanation: The noun 'limit' is suitable as it denotes a maximum allowable amount of work hours, which aligns with the context of institutional recommendations. It fits grammatically as it serves as the object of the verb 'set' in the sentence.

Meaning: 'Limit' refers to a maximum or boundary that should not be exceeded, indicating the recommended hours students should work.

Wrong options:

• boundary: 'Boundary' suggests a dividing line but does not fit the context of a maximum work hour recommendation.
• edge: 'Edge' implies a border or margin, which does not convey the idea of a maximum work hour limit.
• law: 'Law' refers to a rule or regulation, which is too formal and does not fit the context of work hour recommendations.
• border: 'Border' indicates a dividing line and does not convey the concept of a maximum work hour.

Correct answer: exceed

Explanation: The verb 'exceed' is appropriate as it indicates going beyond a specified limit, which fits the context of students working more than the recommended hours. It aligns grammatically with the subject 'students' and the action they are taking.

Meaning: 'Exceed' means to go beyond a limit or expectation, highlighting that some students work more hours than advised.

Wrong options:

• improve: 'Improve' suggests making something better, which does not fit the context of working hours.
• overdo: 'Overdo' implies doing something excessively, which is too informal and does not fit the context of working hours.
• raise: 'Raise' typically refers to increasing something but does not fit the context of working hours exceeding a limit.
• increase: 'Increase' suggests a growth in quantity but does not convey the idea of surpassing a limit as effectively as 'exceed'.