1. Is theory of evolution taught at school?
2. Will replacement for petrol be invented in next five years?
3. Were law of psychics known hundred years ago?
4. Are new paints being painted?
5. Were new songs made?
6. Has your english homework been done already?
7. Had telephone been made before the car?
8. Will unit 3 have been completed before we will write the test?
9. Is your pen used in the school?
10. Were the exercises done on maths?