Meaning: 'Extra' means additional or more than what is usual or necessary.

Wrong options:

• more: The word 'more' is a comparative adjective that does not fit as it does not specify the type of income, making it vague in this context.
• fees: The term 'fees' refers to charges for services, which does not relate to the concept of income and is therefore irrelevant here.
• debt: 'Debt' refers to money owed, which is the opposite of income and does not fit the context of describing financial support.
• gain: 'Gain' is a verb that does not function as a noun to describe income, making it grammatically incorrect in this context.
• outperform: 'Outperform' is a verb that means to perform better than something else, which does not relate to the concept of income.

Correct answer: gain

Explanation: The verb 'gain' fits grammatically as it indicates the action students take when they hold a part-time job. Contextually, it aligns with the idea of acquiring skills that are beneficial for their future.

Meaning: 'Gain' means to acquire or obtain something, in this case, skills.

Wrong options:

• exceed: The word 'exceed' is a verb that means to go beyond a limit, which does not fit the context of acquiring skills.
• more: 'More' is an adverb that does not convey an action and does not fit grammatically in this context.
• fees: 'Fees' refers to charges for services and does not relate to the action of acquiring skills.
• debt: 'Debt' refers to money owed and does not fit the context of gaining skills.
• limit: 'Limit' is a noun that refers to a restriction, which does not fit as it does not convey the action of acquiring skills.

Correct answer: debt

Explanation: The term 'debt' functions as a noun that refers to the amount of money owed. It fits grammatically as it is the object of the verb 'reduces' and contextually indicates the financial burden students aim to minimize.

Meaning: 'Debt' means money that is owed to someone else.

Wrong options:

• exceed: The word 'exceed' is a verb that does not fit as it does not relate to the concept of money owed.
• limit: 'Limit' is a noun that refers to a restriction, which does not fit the context of describing financial obligations.
• more: 'More' is an adverb that does not convey a specific financial concept and is therefore irrelevant here.
• fees: 'Fees' refers to charges for services, which does not relate to the concept of debt.
• gain: 'Gain' is a verb that means to acquire, which does not fit in the context of describing money owed.

Correct answer: limit

Explanation: The word 'limit' serves as a noun that indicates a maximum amount of hours students are advised to work. It fits grammatically as it is the subject of the clause and contextually aligns with the idea of setting boundaries for work hours.

Meaning: 'Limit' refers to a maximum allowable amount or extent.

Wrong options:

• exceed: The word 'exceed' is a verb that means to go beyond a limit, which does not fit as it does not describe a maximum amount.
• more: 'More' is an adverb that does not convey a specific quantity and is therefore irrelevant in this context.
• fees: 'Fees' refers to charges for services and does not relate to the concept of work hours.
• debt: 'Debt' refers to money owed and does not fit the context of setting a maximum for work hours.
• gain: 'Gain' is a verb that means to acquire, which does not fit in the context of describing a maximum amount.

Correct answer: exceed

Explanation: The verb 'exceed' fits grammatically as it describes the action of students working beyond the recommended hours. Contextually, it indicates that some students work more than the advised limit, which is relevant to the discussion of work hours.

Meaning: 'Exceed' means to go beyond a set limit or amount.

Wrong options:

• limit: The word 'limit' is a noun that refers to a maximum amount, which does not fit as it does not convey an action.
• more: 'More' is an adverb that does not convey an action and does not fit grammatically in this context.
• fees: 'Fees' refers to charges for services and does not relate to the action of working hours.
• debt: 'Debt' refers to money owed and does not fit the context of describing work hours.
• gain: 'Gain' is a verb that means to acquire, which does not fit in the context of describing the action of working hours.