решить тест по английскому! 15. The electronic computer these calculations. 1) just performed 2) had just performed 3) were just performing 4) has just performed

16. The controller the disk drive at the present time. 1) run 2) has run 3) is running 4) runs
17. The first electronic computer 30 tons. 1) weighed 2) will weigh 3) has weighed 4) had weighed

18. They several attempts recently to do this hard job. 1) make 2) made 3) are making 4) have made

19. They usually their European meeting in Paris. 1) are holding 2) hold 3) holds 4) have held

20. She in Rome at the moment. 1) works 2) worked 3) is working 4) has worked

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