Cope out these sentences and put the verbs into the tense past simple or present perfect 1 i (do) just my homework. i can go out with my friends. 2 alice (collect) german and french coins last summer. 3 susan (be) already to the library. she is reading a very interesting book. 4 he (see) this film yesterday. 5 what you (buy) any christmas presents? -not yet. 6 carol (invite) her classmates to her home last sunday. they had a good time together.