Complete the text about George with present perfect simple or continuous

Complete the text about George with present perfect simple or continuous form of the verbs given.

George (1) just (start) his second
year as a university student.
He (2) (study) psychology up until now, but recently he (3)
(decide) that he wants to study something else.
His tutors (4) (tell) him to think very carefully before
changing his course. For now, George (5) (follow)
his tutors advice. He (6) (go) to all his Psychology
lectures and he (7) (think) more about what he
wants to do.