1. Keeping the environment clean is very important.

- It’s very important to keep the environment clean.

2. They will show the time machine to the public when they finish it.

- The time machine will be shown to the public when it is finished.

4. Old car tires are recycled to make shoes and sandals.

- People recycle old car tires to make shoes and sandals.

1. It's very important to keep the environment clean.

2, The time machine will be shown to the public when they are finished.

3. He was able to dance when he was only 3 years old

4. Are the flowers watered every day?

5. I'm very sad not to be accepted in the group.

6. You don't have to finish the work today.