Questions & Answers about Мой друг учится в университете.
In Russian, the verb быть (to be) is normally omitted in the present tense in simple sentences like this.
So instead of saying something like Мой друг есть студент, Russian just says:
- Мой друг студент. – My friend is a student.
- Мой друг учится в университете. – My friend is studying at university.
The verb быть appears in the past and future:
- Мой друг был студентом. – My friend was a student.
- Мой друг будет учиться в университете. – My friend will study at university.
In the present, you usually just put the words together: [subject] + [what they are / what they do].