将下列句子改为否定句。 1. Mrs Green is my history teacher. Mrs Green _____ _____ my history teacher. 2. Her father can play the piano. Her father _____ _____ play the piano. 3. I have some friends. I _____ _____ _____ friends. 4. He does homework every evening. He _____ _____ homework every evening. 5. The girls like action movies. The girls _____ _____ action movies. 6. Take these tomatoes to your brother. _____ _____ these tomatoes to your brother. 7. I'm your English teacher. I _____ _____ your English teacher. 8. She eats carrots every day. She _____ _____ carrot.s every day. 9. These art my friends. These _____ _____ my friends. 10. His biology teacher is funny. His biology teacher _____ _____ funny.