Ex. 1. open the brackets using the correct form of the verb (present simple, past simple, future simple, present continuous 1. the teacher usually (to explain) grammar rules in the middle of the lesson. 2. i (to play) in the yard after 3 o’clock every day. 3. my father (to drive) the car very well. 4. i get at 6 o’clock every morning. 5. my brother (to sit) in the arm-chair now. 6. look! the boys (to ride) bicycles. 7. the pupils (to visit) the art gallery last week. 8. my relatives (to buy) a car yesterday. 9. they (to learn) spanish next year. 10. she (to go) to school 6 days a week? 11. they always (to spend) their winter holidays in the carpathians? 12. you (to dance) in the club on saturdays? 13. peter and mary (to dance) now? 14. you (to read) a detective story at the moment? 15. mike (to have) a good time now? 16. the pupils (to write) a composition last week? 17. the children (to go) to the forest tomorrow? 18. they (not to discuss) texts at the english lessons. 19. he (not to listen) to classical music. 20. where’s father? he (not to work) in the garden. 21. george (not to prepare) for examination last week.

1 explains 2 play 3drives 5 is sitting 6 are riding 7 visited 8 bought 9 will learn
10 Does she go 11 Do they always spend  12 Do you dance  13 Are Peter and Mary dancing now? 14 Are you reaing  15 Have Mike a good   
16 Did the pupils write 17 Will the children go  18 don't discuss
19 doesn't listen   20 isn't working   21 didn't prepare

So...De-extinction is the process of creating an organism which is – or greatly resembles – a member of an extinct species (1). Contemporary biotechnology offers various promising alternatives for achieving this purpose, including the techniques that have already been applied to preserving endangered species (2). De-extinction requires an in-depth study of the biophysical conditions where the species can live and reproduce in relation to other species – including humans – and adapt to the environmental changes. In any case, risk and harm evaluation on the impact of the “re-birth” of species is necessary. There is a number of crucial ethical issues concerning de-extinction. They include the meanings of concepts such as “nature,” “species,” “evolution,” “biodiversity,” “death,” and “wildlife” in relation to human behavior and human impact on nature (3). In 2013, de-extinction became popular through press and public events; the National Geographic devoted a cover story to this topic and presented various possibilities and scenarios about the most suitable candidates. The Revive & Restore network, with the support of TED and in partnership with the National Geographic Society, convened the TEDxDeExtinction conference bringing together conservationists, genetic technology practitioners, scientists, and ethicists (http://www.ted.com/tedx/events/7650). Because the revival of extinct animals inspires imagination (4), de-extinction has been a topic of science fiction novels, such as John Brosnan’s Carnosaur (1984) and Michael Crichton’s Jurassic Park (1990) and their film adaptations.

Following a systematic philosophical and ethical analysis on animal de-extinction in the context of ecological restoration (3), this article analyzes de-extinction from the standpoint of bio-objectification and considers how de-extinction is a case of bio-objectification.

I met my fiance while I lived in Italy last year.

2. Dawn not spok to her new boss before. She was very nervous

3. I waited to see the doctor, when Mark and Julie came in

4. Ken had an interview at 10 o'clock this morning , and this afternoon they offered him the job.

5. What you did at the office so late last night? I saw your car in the car park.

6. I don't wanted to disturb my grandmother because she slept.

7. The waiter took my plate before I finished

8. The last time Jan saw) Ray he worked for a car company.