1. My sister is watching TV right now. 2. The children are not swimming at the moment. 3. I am driving to work right now. 4. She is writing a letter to her friends at present. 5. Keep silent! The teacher is coming. 6. My friend is on holiday now and I want to talk to her. 7. Lan usually goes to school on foot but she is going by car today. 8. Please be quiet! I am doing my homework. 9. Where is your mother? - She is preparing dinner in the kitchen.