12 упр. 1. Have you been 2. have called 3. invented 4. has been 5. finished 6. did you go 7. has just got 8. lost 9. bought 10. did they meet
13 упр. 1. had already stopped 2. had been translating 3. was standing 4. had walked 5. was still snowing 6. called 7. came 8. bought 9. was doing 10. had read
14 упр. 1. many 2. much 3. many 4. a lot of 5. much 6. a lot of 7. much