С1.the decrease in cost of microelectronic devices rise to compact and powerful hardware since the end of 1990s. a) given b) have given c) has given 2. i to the usa lately. i was surprised that most of the students were computer literate. a) was b) have been c) has been 3. my grandmother
e-shopping some time ago because she has a pc at home. a) does b) did c) has done 4. our group mates english on-line this month yet. a) haven't practiced b) didn't practice c) hasn't practiced 5. your brother ever .. photoshop? a) does use b) has used c) is used 6. when you to the exhibition
about independent communication network? a) do go b) did go c) have gone 7. i have worked in this company 3 years a) from b)since c)for 8. i my first web page by the age of 8. a) designed b)have designed c)had designed 9.i a copyright law before i downloaded the software from the internet.
a) had broken b) have broken c) broken 10. the children games on-line yet, when their mother came from work. a) haven't played b) hasn't played c) hadn't played 11. an american scientist a lecture about personal computer by 12 o'clock yesterday? a) did deliver b) have delivered c) had
delivered 1 12. they in ekaterinburg for 10 years before they moved. a) lived b) have lived c) had lived 13. she her exams by the end of the month. a) will pass b) will has passed c) will have passcd 14. mary's parents a new laptop to her if she passes all her exams with excellent marks. a)
present b) presented c) will have presented 15. if they buy a new software, the students literate a) will have become b) have become c) will become 16. i hope books and newspapers by the 22ad century. a) hadn't disappeared b) haven't disappeared c)won't disappeared 17. by what time you that
website? a) will have made b) will make c) will have make 18. in the past people thought that computers invent jokes or write beautiful music. a) couldn’t b) can't c) won't be able to 19. modern pcs do amazing things: they even understand mathematical games. a) must b)can c) should 20. a lot
of musicians and music companies were not happy because people get their music free. a) can b) will be able to c) could 21. nowadays everybody be computer - literate. a) must b) have to c) to be to 22. he make a report about new computer-based technologies yesterday? a) is, have to b) did,
have to c) does, have to 23. when your parents ask you where you were last night, you tell them lies. a) shouldn't b) mustn't c) оба варианта возможны 24. i think you .ю. change your old pc for a new model of a laptop - it's more convenient to use. a) must b) should c)can 25. before i entered
the university, i surf the internet and find necessary information. a) couldn't b) can't c) won't be able to 26. i borrow your scanner? - of course, i have already copied all my documents. a) must b)may c)should 27. today is monday. my business partner arrive on sunday. a) is to b) was to c)
will be to 28. i have only floppy disk at home. a) one b) two c) three 29. television is always a topic for conversation and a good a) one b) ones c)оба варианта возможны 30. my parents are the best friends for me and very fair a) one b) ones c)оба варианта возможны

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nastya2740

4,6(47 оценок)

ответ:

i am happy.

london is a big city.

dave and adrian aren't sisters.

izmir isn't a big city.

cows aren't insects. they are mammals.

new york is near to new jersey.

susan and i are teachers. we aren't students.

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