Choose the correct form of the verb. 1. the businessmen (are/ have been) at the talks for two hours. 2. what (did you do/ have you done) last night? 3. i (went/ have been) to many countries in my life. 4. how long (does he know/ has he known) mr. blake? 5. he (went/ has been) to greece two years ago. 6. when (have you come/ did you came) here? 7. (have you written/ did you write) a letter to mr. white yet?
2 did you do
3 have been)
4 has he known
5 went
6 did you come
7 (Have you written