Meaning: 'Action' refers to the process of doing something, especially to achieve an aim or deal with a situation.

Wrong options:

• reaction: 'Reaction' implies a response to something that has already happened, which does not fit the proactive context of the United Nations' capabilities.
• expectation: 'Expectation' refers to a belief about what will happen in the future, which does not align with the active role described in the sentence.
• expression: 'Expression' relates to conveying thoughts or feelings, which does not match the intended meaning of taking initiative or steps.

Correct answer: express

Explanation: The verb 'express' is correctly used here as it indicates the action of conveying thoughts or opinions, fitting well with the context of Member States sharing their views. It aligns grammatically with the structure of the sentence.

Meaning: 'Express' means to convey or communicate thoughts, feelings, or opinions verbally or in writing.

Wrong options:

• regret: 'Regret' implies a feeling of sadness or disappointment about something that has happened, which does not fit the context of sharing views.
• extend: 'Extend' generally means to increase in length or duration, which does not apply to the act of sharing opinions.
• press: 'Press' suggests applying pressure or urgency, which does not accurately describe the act of sharing views in a formal setting.

Correct answer: corner

Explanation: The word 'corner' is appropriate as it refers to every part or area of the globe, fitting the context of the United Nations' global reach. It is a noun that works well with the phrase 'every corner of the globe.'

Meaning: 'Corner' in this context means a part or area, suggesting that the United Nations' work impacts all regions of the world.

Wrong options:

• place: 'Place' is too vague and does not convey the same sense of widespread coverage as 'corner' does in this context.
• time: 'Time' refers to a period or duration, which does not fit the spatial context of the sentence.
• stage: 'Stage' implies a phase in a process, which does not relate to the geographical scope intended in the sentence.

Correct answer: prevention

Explanation: The noun 'prevention' fits grammatically and contextually as it refers to the act of stopping something from happening, which aligns with the United Nations' efforts in conflict management. It complements the list of activities the UN is known for.

Meaning: 'Prevention' means the action of stopping something from occurring, particularly in the context of avoiding conflicts.

Wrong options:

• aggregation: 'Aggregation' refers to the process of collecting or gathering things, which does not relate to the proactive measures taken by the UN.
• implementation: 'Implementation' refers to the process of putting a decision or plan into effect, which does not fit the context of stopping conflicts before they arise.
• extension: 'Extension' implies lengthening or expanding something, which does not align with the concept of preventing conflicts.