13.　　　 I was the only person in my office who was invited. I’ve written to accept the i_______________.

12.　　　 In my o____________, he is a good teacher.

11.　　　 He did it on p_____________, so you should punish him.

10.　　　 Earth Day is a r______________ that we need to care about the world we live in and that we should learn to respect life and nature.

9.　　　　　 Earth Day is a c_____________ of life and our planet.

8.　　　　　 You broke your grandma’s f_____________ vase, so she was angry.

7.　　　　　 Peter played a t________ on Carol and she wouldn’t talk to him for 2 days.

6.　　　　　 On Nature Day, no pollution or d_____________ of nature is allowed. People learn and talk about nature.

5.　　　　　 On Friendship Day no a____________ or flights are allowed , people learn about friendship.

4.　　　　　 On Peace Day no fighting or c____________ are allowed. People learn and talk about peace.