молярная масса глауберовой соли - Дата: 29.10.2019, Автор: guccictyf - №19796097

молярная масса глауберовой соли
- Предмет:
  Химия
- Автор:
  guccictyf
- 6 лет назад

Ответы 1

Молярная масса глауберовой соли: 142 г/моль
- Автор:
  frankieyply
- 6 лет назад
- 0
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Exercise 1. Употребите глагол в нужном времени.

1. I did not see Andrew yesterday. (Past Simple)
2. I … (to know) Jane for three years, but I … (to know) what she is thinking.
3. Do you (to like) playing chess?
4. Can I speak to your parents, please? I’m sorry. They are having lunch at the moment.
5. Our teacher is ill so she … (to be) at school next week.
6. John … (to play) in the school team for two years.
7. My parents … (to work) for this company since 1993.
8. I … (to break, already) two plates. Shall I go on washing up?
9. I … (to sit) here in the park for an hour , and I … (to meet) there friends of mine.
10. The students … (to talk) when the teacher … (to enter) the room.
11. She … (to chop) potatoes when she … (to cut) her finger.
12. Jill … (to sleep) when the telephone … (to wake up) her.
13. Jane … (to wash) all the test-tubes after she … (to complete) the experiment.
14. She … (to do) cleaning by 6 o’clock yesterday.
15. After the stewardesses … (to serve) lunch to the passengers, they … (to calm) down.
16. When she got the results of her medical tests, she realized that she … (to be feeling) ill since she … (to be) on holiday.
17. Kate got married when she … (to be) 27.
18. The restaurant wasn’t expensive. The meal … (to cost) very much.
19. When I … (to arrive) at the office, Jane and Paul … (to work) at their desks.
20. … you … (to be, ever) to France? Yes, many times. When … (to go) the last time? Two years ago.
21. Where … you (to buy) that book? It was a present. Ann … (to give) me.
22. It’s a nice day today. The sun … (to shine).
23. The more you study, the better results … (to be).
24. He looks angry. He … (to argue).
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