I am Paula Rendón. I´m studing English because I need to pass an english proficiency test at my University. 

I am a PhD student, studying mathematics.

I´m learning English

I am Paula Rendón. I´m studing English because I need to win a test of the university.
I am a student Ph. D. in mathematics education.

I´m learning English

I am Paula Rendón. I´m studing English because I need to win a test at my university.
I am a  Ph. D. student in mathematics education.

I´m learning English.

I am Paula Rendón. I´m studying English because I need to pass a test at the university.
I am a PhD student in mathematics education.