XV.

1. Last week, we planted a lot of trees in the new park close our school.

2. Volunteers washes dirty clothes and classifies before giving the poor.

3. We come to people's houses and ask to donate money for charity.

4. Next week, we will give away books and school things to poor children.

5. Singer decided to donate show's money in her show to orphanage children in this district.

I.

1. D

2. A

3. A

4. A

5. C

II.

6. D

7. A

8. C

9. A

10. A

iii.

1. C

2. A

3. A

4. C

5. A

6. C

7. A

8. A

9. D

10. C