【正文】
1,000 one million 1,000,000 one billion 1,000,000,000 one point one What’s the population of Jiaxing? It’s about 3,339,000. A: What does she do ? B: She is a teacher. A:What is she doing? B: She is pointing at the blackboard. A:How long has she been a teacher? B: Perhaps she has taught for 15years. 1. I _____(stay) in my aunt’s home near the sea for a week last summ