Question

Измените каждое предложение, поставив модальные глаголы в сказуемом в прошедшее и будущее время: 1. Не must work hard to finish his experiment. 2. I can devote myself to scientific work. 3. They may carry out these experiments at the laboratory. 4. She can study chemistry at the university.

Answer 1

1. He had to work...
He will have to work
2 I will be able to devote
I could devote
3 they might carry
They will be allowed to carry
4 she could study
She will be able to study