Александр
помогите определить время и залог в предложениях в английском языке!! срочно !
1.The greater part of patrol today is carried out by officers in police cars.
2.Use of women officers for patrol duty is increasing ; before 1970 the practice was unknown.
3.Most detectives are assigned to the criminal investigations division after several years on patrol duty.
4.Detectives are organized into specialized units.