Verified answer

Ответ:

I was prescribed a medicine for my cough by the doctor.

A medicine for my cough was prescribed to me by the doctor.

Endangered species should be protected by society.

A brace was being worn by her during two years to correct her gappy teeth.

Unleaded petrol must be used to reduce the number of exhaust fumes by people.

Space shuttle is expected to return tomorrow. или Space shuttle will be returned tomorrow.

Объяснение: