№3 Трансформируйте предложения в прошедшее и будущее время 1. He may use the diagrams for his report. 2. Every motion must be considered as a relative motion. 3. Fractions can be added if they have common denominator. 4. Most persons can hear sounds between 20 and 20,000 vibration per second. 5. The generator must be repaired as soon as possible (Не убирая модальные глаголы)
He used the diagrams for his report.Every motion had to be considered as a relative motion.Fractions could be added if they had a common denominator.Most persons could hear sounds between 20 and 20,000 vibrations per second.The generator will have to be repaired as soon as possible.