Error Identification

Each sentences contain mistake (s) . Correct them.

1. An air in this room is fresh.

2. Smith knows grammar the better of all the students.

3. Silver is least valuable than gold.

4. This is not the books I want.

5. Women like beauty clothes.

6. They were punished for steal money.

7. Run every morning is good for health.

8. I did this without some help.

9. A rich man does not always helps a poor man.

10. Some of the students got low mark, did they？