Употребите present perfect или past simple в следующих предложениях. 1. i(not/to see) sam for along time. 2. what european countries you (to visit)? 3. i(to be)in germany and france in 1998. 4. the concert (to begin) ten minutes ago. 5. …(you/to write) the letter yet? 6. he already(to have)breakfast. 7. mary (to know) steven for six years. 8. (you/ ever /to eat) at this restaurant? 9. he already (to talk) to him. 10. he just (to go) for a walk.