C- rewrite the sentences in the: 1. negative form; 2. interrogative form. 1. peter was waiting for his father. 1- 2- 2. joan was walking towards bill. 1- 2- 3. yesterday it was pouring. 1- 2- 4. they were going to the cinema. 1- 2- 5. i was taking photos near the river. 1- 2- 6. he was phoning his sister. 1- 2- 7. we were looking for our book. 1- 2- 8. they were arguing in the street. 1- 2- 9. roy was telling some jokes. 1- 2- 10. grace was sending an e-mail. 1- 2- 11. i was reading a book. 1- 2- 12. mark was playing guitar. 1- 2- 13. susan was studying for the test. 1- 2- .