Result:
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Correct answer: celebrated
Explanation: The word 'celebrated' fits grammatically as it is the past participle form used in a passive construction, indicating that the achievement of longer life expectancy should be acknowledged or honored. This aligns with the context of the sentence, which discusses the positive aspects of increased life expectancy.
Meaning: 'Celebrated' means recognized or acknowledged with joy or admiration, suggesting that the increase in life expectancy is a noteworthy achievement.
Wrong options:
- coordinating: 'Coordinating' refers to organizing or working together, which does not fit the context of acknowledging an achievement.
- celebrates: 'Celebrates' is in the present tense and does not match the passive construction needed in this context.
- celebrating: 'Celebrating' is a gerund and does not fit grammatically as it does not complete the sentence structure correctly.
Correct answer: enhance
Explanation: The verb 'enhance' is the base form required after 'to be mobilized to,' which indicates purpose or intention. This aligns with the context of the sentence, which discusses the potential role of older individuals in boosting productivity.
Meaning: 'Enhance' means to improve or increase the quality, value, or extent of something, suggesting that older people can contribute positively to community productivity.
Wrong options:
- enhanced: 'Enhanced' is the past participle form and does not fit the infinitive structure required after 'to be mobilized to.'
- enhancing: 'Enhancing' is a gerund and does not fit the grammatical structure needed in this context.
- encounter: 'Encounter' means to meet or come across, which does not relate to the idea of improving productivity.
Correct answer: does
Explanation: The word 'does' is the correct present tense form of the verb to agree with the singular subject 'output,' fitting grammatically and contextually in the sentence that discusses the relationship between life expectancy and productivity.
Meaning: 'Does' is a helping verb used to form questions or negatives, here indicating that as life expectancy increases, the output also increases.
Wrong options:
- did: 'Did' is the past tense form and does not match the present context of the sentence discussing current findings.
- doing: 'Doing' is a gerund and does not fit the grammatical structure required in this context.
- do: 'Do' is the base form but does not agree with the singular subject 'output,' making it grammatically incorrect.
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