Сpast simple or present perfect 1)helen ( to invite) her classmates to her home last monday. they had a good time together. ( to buy ) any christmas present? -not yet. 3)tom (to be ) already to the library. he is reading a very interesting book. 4)alice (to collect) entlish and german coins last year. 5) l (to do) my homework. l cam go out with my friends.

Invited
have you bought
has already been
collected
have done

1)Helen   invited  her classmates to her home last Monday. They had a good time together.
2) have youto bought any Christmas present?-Not yet.
3)Tom has already been to the library. He is reading a very interesting book.
4)Alice  collected Entlish and German coins last year.
5) l have done ) my homework. l can go out with my friends.