III. Find out the mistakes in the following sentences.
1. My friend, Tam was injured in a car accident but he didn’t drive carefully.
         
2. If I finish my homework soon, I would take my little sister to swiming pool.
 

3. She can't accept the invitation because she is sickness. 

4. For my opinion, we can reduce the amount of garbage we produce by recycling things. 
5. We ‘ll never catch them up if you walk as slow as that.

6. If we go on to litter, the environment will become seriously polluted.
 

7. It's possible storing solar energy for a number of days. 

8. Our environment has become worse but there are many factors causing from men. 

9. My recent electricity is enormous, so I'm worried in it. 

10. He has just come back to the village when he was born. 

11. The boy laughed happy as he played with the teddy bear.

12. Susan speaks so fastly that I can't understand her.