Поделитесь своими знаниями, ответьте на вопрос:
Подчеркните модальные глаголы и их эквиваленты, переведите предложения: 1. the technologist is to investigate the unknown. 2. the engineer must apply engineering tables and formulas in his work. 3. all the units of a new tractor can be produced at this plant. 4. they have to pay for their education. 5. he was able to do this task himself.