Meaning: A 'shortage' refers to a situation where there is not enough of something, in this case, skills needed by companies.

Wrong options:

• bad: 'Bad' is an adjective that does not fit grammatically as it cannot describe an argument in this context.
• increased: 'Increased' is a past participle that does not function as a noun and does not fit the grammatical structure required here.
• predicted: 'Predicted' is an adjective that does not fit as it does not describe a lack of skills but rather a forecast.
• replace: 'Replace' is a verb that does not fit grammatically as it does not describe a noun related to skills.
• hardened: 'Hardened' is an adjective that does not relate to the context of skills and does not fit grammatically.
• offering: 'Offering' is a gerund that does not serve as a noun in this context and does not fit the structure of the sentence.
• contributing: 'Contributing' is a gerund that does not fit grammatically as it does not describe a noun related to skills.

Correct answer: offering

Explanation: The word 'offering' serves as a gerund that indicates the action of providing more apprenticeships. It fits grammatically and contextually as it describes what companies are doing to attract staff.

Meaning: 'Offering' refers to the act of providing something, in this case, apprenticeships to potential employees.

Wrong options:

• bad: 'Bad' is an adjective that does not fit grammatically or contextually as it does not describe an action related to apprenticeships.
• increased: 'Increased' is a past participle that does not function as a verb in this context and does not fit the grammatical structure required here.
• predicted: 'Predicted' is an adjective that does not describe an action and does not fit the context of what companies are doing.
• shortage: 'Shortage' is a noun that does not fit grammatically as it does not describe an action related to apprenticeships.
• replace: 'Replace' is a verb that does not fit the context of providing apprenticeships and does not match the grammatical structure.
• hardened: 'Hardened' is an adjective that does not relate to the context of offering apprenticeships and does not fit grammatically.
• contributing: 'Contributing' is a gerund that does not fit grammatically as it does not describe the action of providing apprenticeships.

Correct answer: predicted

Explanation: The word 'predicted' is an adjective that describes the anticipated retirement influx. It fits grammatically and contextually as it indicates something that is expected to happen in the future.

Meaning: 'Predicted' refers to something that is forecasted or expected to occur.

Wrong options:

• bad: 'Bad' is an adjective that does not fit grammatically or contextually as it does not describe the nature of the retirement influx.
• increased: 'Increased' is a past participle that does not fit as it does not describe a future event but rather a change in quantity.
• shortage: 'Shortage' is a noun that does not fit grammatically as it does not describe an anticipated event.
• offering: 'Offering' is a gerund that does not fit as it does not describe the nature of the retirement influx.
• replace: 'Replace' is a verb that does not fit grammatically as it does not describe an anticipated event.
• hardened: 'Hardened' is an adjective that does not relate to the context of predicting future events and does not fit grammatically.
• contributing: 'Contributing' is a gerund that does not fit grammatically as it does not describe an anticipated event.

Correct answer: increased

Explanation: The word 'increased' is a past participle that describes the rise in applications to study engineering. It fits grammatically as it indicates a change in quantity and aligns with the context of discussing applications.

Meaning: 'Increased' refers to something that has grown or risen in amount or number.

Wrong options:

• bad: 'Bad' is an adjective that does not fit grammatically or contextually as it does not describe a change in quantity.
• predicted: 'Predicted' is an adjective that does not fit as it does not describe a change in applications but rather an expectation.
• shortage: 'Shortage' is a noun that does not fit grammatically as it does not describe a change in applications.
• offering: 'Offering' is a gerund that does not fit grammatically as it does not describe a change in applications.
• replace: 'Replace' is a verb that does not fit grammatically as it does not describe a change in applications.
• hardened: 'Hardened' is an adjective that does not relate to the context of applications and does not fit grammatically.
• contributing: 'Contributing' is a gerund that does not fit grammatically as it does not describe a change in applications.

Correct answer: replace

Explanation: The word 'replace' is a verb that indicates the action of substituting staff due to retirement. It fits grammatically and contextually as it describes what businesses need to do in response to retirements.

Meaning: 'Replace' means to take the place of someone or something, in this case, staff who are retiring.

Wrong options:

• bad: 'Bad' is an adjective that does not fit grammatically or contextually as it does not describe an action related to staffing.
• increased: 'Increased' is a past participle that does not function as a verb in this context and does not fit the grammatical structure required here.
• predicted: 'Predicted' is an adjective that does not describe an action and does not fit the context of staffing needs.
• shortage: 'Shortage' is a noun that does not fit grammatically as it does not describe an action related to staffing.
• hardened: 'Hardened' is an adjective that does not relate to the context of replacing staff and does not fit grammatically.
• offering: 'Offering' is a gerund that does not fit grammatically as it does not describe the action of replacing staff.
• contributing: 'Contributing' is a gerund that does not fit grammatically as it does not describe the action of replacing staff.