Explanation:
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In-text citations: Author-page style MLA format follows the author-page method of in-text citation. This means that the author's last name and the page number(s) from which the quotation or paraphrase is taken must appear in the text, and a complete reference should appear on your Works Cited page.
Answer:
The United States were in competition with the soviet Union on who would be able to rule the skies by be the first to enter the moon.
<em>The ability of the NACA not to recieve adequate funding and being under beauracatic bottleneck didn't afford them the opportunity to actualise their aim hence the reason why Soviet Union where the first to send a manned space ship to the moon.</em>
Explanation:
The sentence that contains a present perfect verb is: She has assisted voters in District 2 for many years.
The present perfect tense is formed by combining the verb to have/has and the past participle of the main verb in the sentence.
In the third option given, the combination of "has" and "assisted" helps in forming the present perfect tense of the sentence. Thus, option C is correct.
Learn more about the present perfect tense here:
brainly.com/question/886745