Topic: Conjugation of Verb,

Best Answer Explained in Below-:

In the sentence "The enemy has (to flee) away," the correct form of the verb to use is "fled," which is the past participle of "flee." This is because the sentence requires the perfect tense, which uses "has" followed by the past participle form of the main verb.

The structure "has + past participle" implies that the action of fleeing has been completed or is relevant to the present situation. The key here is understanding the difference between the various forms of the verb "flee."

- "Flee" (option A) is the base form, not appropriate for this tense.
- "Flew" (option B) is the simple past tense, which is also incorrect in this context.
- "Fled" (option C) is the correct answer because it is the past participle, suitable for use with "has."
- "Fly" (option D) is the base form but does not fit in the intended perfect tense construction.

Thus, "The enemy has fled away" accurately conveys that the action of fleeing was completed recently and has implications for the present situation.