I. Change these sentences into the negative and interrogative forms (Đổi thành câu Phủ định và nghi vấn) 1. She walks to school every morning. 2. They learn how to use the lawnmower in their free time. 3. Linda goes to the supermarket to buy some sugar. 4. Sometimes I feel really lazy to do anything. 5. Phong and I study English in my room. 6. I often have breakfast at 7 am at home. 7. She does aerobics every morning to keep fit. 8. Nga likes playing basketball very much. 9. What time do you have lunch every day? 10. She has a red pen. 11. Cars are more expensive than motorbikes