Объяснение:

1. 2) He isn't a doctor. 3) My name is not Silvia. 4) She isn't married. 5) His address is not 10 Downing Street. 6) You aren't 23.
2. 2) Where is she from? 3) Where does she live? 4) How old is she? 5) What is she? 6) Is she married?
3. 2) he is. 3) it is. 4) am. 5) am not. 6) she isn't.
4. 2) A policeman. 3) A woman. 4) A nurse. 5) A taxi driver. 6) A cashier.