Подчеркнуть в каждом предложение модальный глагол и его эквивалент.Перевести предложения на русский язык 1.People are able to use heat electricity and light for many purposes 2.We can't come tomorrow.We are to meet our friends at the airport 3.He may come to see you tomorrov. 4.You must post the letter at once.
People are able (могут) to use heat electricity and light for many purposes.We can't (не можем) come tomorrow. We are to meet our friends at the airport.He may (может) come to see you tomorrow.You must (должны) post the letter at once.