Допишите разделительный вопрос:
Пример: they are studying history, arent they?
1. Computers are found everywhere and used sphere of lite, _?
2. A database programme is used for searching and sothing records, _?
3. It makes wotk with great amounts of data much quicker, _?
4. Calculations without a computer could have taken several month, __?
5. Computer helps puplis to study effectively,_?
6. Computer viruses can cause a lot of trouble, _?

1. Computers are found everywhere and used sphere of lite, aren't they? 2. A database programme is used for searching and sothing records, isn't it? 3. It makes work with great amounts of data much quicker, doesn't it? 4. Calculations without a computer could have taken several month, couldn't they? 5. Computer helps puplis to study effectively, doesn't it? 6. Computer viruses can cause a lot of trouble, can't they?