Ответ:
1.Where do these downloaders work?, We work in our instutition.,What language do you usually speak with these engineers?,We usually speak Russian ,Sometimes we speak french,Morning I enter the class and sit down at my dictations,do exercises speak french.This exercises is long.Do it in English the lesson.No they live in Leningrad.8.What do you do after work?-I have lessons in the evenings.9.Whose books are this?.-These are my books.Are these Russian and French books?-These are Russian books.10.Who is standing there?-This is Anna.