Как правильно: is the safest way of all или is safest

2. went

3. have you ever been

4. went

5. have sold

6. did you sell

7. sold

8. went

9. haven't been

10. have never seen

-he works in a hospital.   -he is a doctor.

she works at school.   -she is a teacher

-they fly planes.   -they are  pilots

-we are at school.   -we are  students

-i fly rockets. i am a cosmonaut