Final answer:
The correct verb form to complete the sentence is 'mejore'.
Step-by-step explanation:
To complete the sentence, the correct verb form is mejore. This is the third person singular form of the verb 'mejorar' (to improve) in the present subjunctive tense. The sentence is stating that it is necessary for the government to improve the economy in order to reduce unemployment and eliminate poverty.
Learn more about Verb forms in Spanish