Rewrite the sentences in reported speech. Change pronouns and time expressions

Rewrite the sentences in reported speech. Change pronouns and time expressions where necessary.
1. She said, I am saving endangered species of plants.
She said that
2. They said, We are responsible for our nature.
They said that
3. He said, I know pollution-causing factors.
He said that
4. She said, I throw away rubbish in bucket.
She said that
5. He said, "I will help you to plant the flowers in the garden."
He said that
6. They said, "We have just known about ecological problems
They said that
7. He said, "I will clean the car."
He said that
8. She said, "I did not say that.
She said that
9. She said, "I don't know where uncrowned districts are."
She said that
10. He said: "I won't tell anyone."
He said that