1.Past Simple или Present Perfect?

1) I just (to enter) the University, so it is sometimes not easy for me to find the lecture hall I need.
2) He (to graduate) from a higher school in Moscow, not St.Petesburg.
3) Last year he (to get) state grant and also (to work) part time.
4) Two years ago-in my first year at the University- I(not to miss) any lectures.
5) We (to write) a test paper yesterday.