Question

she had been studying in the university since 2008 (tense)​

Answer 1

Answer:

Past continuous tense

Answer 2

Answer:

Your answer is Past perfect Continuous Tense.

It is noted that the use of 'had been' is very often seen in the Past perfect continuous tense. Another thing in the sentence is 'since', which confirms that the sentence is an example of Past perfect continuous tense.

Hope, this helps.