Поставьте глагол в present perfect 1. our son (learn) how to read. 2. doctors (cure) many deadly diseases. 3. scientists (split) the atom. 4. you (grow) since the last time i saw you. 5. english (become) one of the most popular courses at the university. 6. my english really (improve) since i took private lessons. 7. i think (see) that movie before. 8. he never (travel) by train. 9. joan (learn) two foreign languages. 10. you (meet) him? - no, i never (meet) him. 11. you (see) that movie? - i (see) that movie twenty times. 12. i think i (meet) him once before. 13. people (travel) to the moon. 14. you (be) to france? - i (be) to france three times. 15. james (not finish) his homework yet. 16. bill not (arrive) yet. 17. the rain (not stop). 18. mary (love) chocolate since she was a little girl. 19. she (be) in england for six months.
2. have cured
3. have splited
4. have grown
5. has become
6. has really improved
7. have seen
8. has never traveled
9. has learned
10. have you met
11. have you seen
12. have met
13. have travelled
14. have you been
15. has not finished
16. hasn't arrived
17. hasn't stopped
18. has loved
19. has been