Variant 1 You could have come first and won the race if you … faster

28. We understand from the passage that Colossus …
A) though it was designed as a code-breaker, was also of great assistance when tactics were being planned.
B) which was built in 1943, was a disappointment to the mathematicians who designed it.
C) was extremely efficient in spite of being clumsy and complicated to look at.
D) an early computer, managed to deceive Hitler concerning the dates of D-Day.
29. According to the passage in World War II the Allies ...
A) were in possession of better electrical computers than Hitler was.
B) managed to track down many enemy spies with the said of Colossus
C) were rarely able to break the codes used by Hitler and his generals even after they had acquired of Colossus.
D) tricked Hitler into believing that the D-Day invasion would happen earlier than actually planned.
30. It is clear from the passage that many of the newest and fastest supercomputers …
A) are being used by government code-breaking centres B) are largely used for destructive purposes
C) are especially designed to break codes D) are still unable to break the world's most secure cipher systems
VARIANT 84
1. Anatomy ... the branch of biology that ... with the structure and organization of living things.
A) is/deal B) is/deals C) was/dealt D) will be/deals
2. The doctor ... just ... for.
A) is/sent B) was/sent C) has/sent D) has/been sent
3. Sanobar ... pleased when she heard she wasn’t going to the promotion after all.
A) couldn't be B) shouldn’t be C) must have D) can’t have been
4. We can't disturb him now. He ...
A) operate will B) operate C) has operated D) is operating
5.  
A) the second and three fourths B) two point three four C) a half and three fourth D) two and three quarters
6. Ben was jogging in the park, but he stopped ... some rest for a few minutes.
A) take B) to take C) taking D) taken