Answer:
By 2025, she will have completed her master's degree.
Step-by-step explanation:
The correct verb form to complete the sentence "By 2025, she ____ her master's degree" is will have completed.
The sentence is in the future perfect tense, which is used to describe an action that will be completed by a certain time in the future. In this case, the action is "completing her master's degree" and the time is "2025".
The future perfect tense is formed with the auxiliary verb "will" and the past participle of the main verb.
In this case, the main verb is "complete", so the past participle is "completed".
So, the correct sentence is:
By 2025, she will have completed her master's degree
