1. I am not going to read this story because I have done it already.
2. I am not going to see this film because I have done it already.
3. We are not going to discuss this book because we have done it already.
4. He is not going to have a dinner because he has done it already.
5. They are not going to repair the road because they have done it already.
6. I am not going to buy a TV set because I have done it already.
7. She is not going to wash the dishes because she has done it already.
8. I am not going to answer this letter because I have done it already.
9. I am not going to turn off the tape recording because I have done it already.
10. We are not going to learn this poem by heart because we have done it already.