Meaning: 'Requirements' refers to the necessary conditions or needs that must be met, particularly in the context of personal development during youth.

Wrong options:

• needs: 'Needs' is a synonym for requirements but is less formal and does not convey the specific expectations implied in the context.
• thoughts: 'Thoughts' refers to mental processes and does not relate to the conditions or expectations that change during the transition to youth.
• facts: 'Facts' are objective truths and do not pertain to the subjective conditions or requirements that evolve during different life stages.

Correct answer: childhood

Explanation: The term 'childhood' is the correct choice as it directly refers to the previous stage of life that is being contrasted with youth. It maintains grammatical consistency and contextual relevance.

Meaning: 'Childhood' denotes the early stage of human development, characterized by specific limitations and conditions that are no longer applicable in youth.

Wrong options:

• age: 'Age' is a general term that does not specify a particular life stage and lacks the contextual specificity needed here.
• youth: 'Youth' is the stage being entered and cannot logically refer to the limitations that are being surpassed.
• old age: 'Old age' refers to a much later stage in life and is irrelevant to the discussion of transitioning from childhood to youth.

Correct answer: transformation

Explanation: The word 'transformation' is appropriate as it signifies a significant change that occurs when moving into maturity. It fits grammatically and contextually, indicating a shift in life stage.

Meaning: 'Transformation' means a thorough or dramatic change in form or appearance, which is relevant to the transition into maturity.

Wrong options:

• hope: 'Hope' is an abstract concept and does not convey the necessary change implied in the context of entering maturity.
• energetic: 'Energetic' is an adjective describing a state of being and does not fit grammatically as a noun in this context.
• expectation: 'Expectation' refers to a belief about what will happen in the future and does not capture the essence of change required in this sentence.

Correct answer: commensurate

Explanation: The term 'commensurate' is the correct choice as it means corresponding in size or degree, which fits the context of new powers and perceptions that align with his progression.

Meaning: 'Commensurate' means equal in measure or extent, indicating that the new teachings and training are appropriate to his level of development.

Wrong options:

• beginning: 'Beginning' refers to the start of something and does not relate to the ongoing process of development indicated in the context.
• equal: 'Equal' is a simpler term that does not convey the nuanced relationship of correspondence implied by 'commensurate.'
• suitable: 'Suitable' implies appropriateness but lacks the specific connotation of proportionality that 'commensurate' provides.

Correct answer: satisfy

Explanation: The word 'satisfy' is the correct choice as it indicates meeting the needs or expectations of his matured view. It fits grammatically and contextually within the sentence.

Meaning: 'Satisfy' means to fulfill the requirements or expectations, which is relevant to how his matured perspective aligns with his experiences.

Wrong options:

• expect: 'Expect' refers to anticipating something and does not fit the context of meeting or fulfilling needs.
• require: 'Require' implies a necessity but does not convey the idea of fulfillment that 'satisfy' does in this context.
• justify: 'Justify' means to provide reasons for something and does not relate to the concept of meeting or fulfilling expectations.