In my opinion, nowadays technology became a big part of our life. Firstly, technology did our life easier. For example, earlier, when we wanted to write a desertation, we spent a lot of time to read thousands of books, now we can do it only in 5 minutes. We need only push the buttons. It's not necessary to spend money to buy books, because we can read it on Internet. Now we more often communicate with our relatives, who live far from us. When it's boring, we can use computer for games. But I also believe, that people became lazy. The degradation of our brain started. We could do some tasks in Math by ourselves, now we can do it with calculator. People think, why we need to spend our time and nerves, when we can do it very fast and right with technologies. Finally, I can say, that there are advantages and disadvantages of this question.
1 phoned ( законченное действие в действие началось в и продолжается до сих пор)
2 did you buy ( действие началось и закончилось в
3 has opened (завершенное действие с результатом в настоящем) -told (действие началось и закончилось в
4 wrote ( действие началось и закончилось в
5 have known ( действие началось в и всё еще продолжается ,результат важен в настоящем) - introduced ( действие началось и закончилось в
6 gave ( законченное действие в завершенное действие с результатом в настоящем)
7 did you see -phoned ( завершённое действие в действие, которое началось в результат важен в настоящем)
8 have you been ( действие произошло в но результат в настоящем )- went,spent ( два действия в которые произошли друг за другом)
9 was ( законченное действие в действие в но важен результат)