Number 1: Good morning, everybody.1. 大家早上好。Number 2: Oh, your new dress looks very nice.2. 噢，你的新裙子看着真漂亮。Number 3: Are you free this weekend?3. 这个周末你有空吗？Number 4: Long time no see. How was your trip?4. 好久不见，你的旅行怎么样？Number 5: I am afraid to speak English in class.5. 我害怕在课堂上说英语。Number 6: You must return the books on time.6. 你必须按时归还这些书。