The complete sentence is: Me levanto por la mañana.
In this question we must choose the most appropriate preposition to complete the sentence, which depends on the context of the sentence. The sentence indicates that someone wakes up in a concrete time of the day. Hence, we conclude that correct preposition is por.
The complete sentence is: Me levanto por la mañana.
We kindly invite to check this question in sentences in Spanish: https://brainly.com/question/22046418
