nice to meet you 见到你很高兴 how are you? 你好吗?thank you very much 非常感谢what's the date today? 今天是几号?It‘s up to you. 由你决定。 Excuse me,Sir. 先生,打扰一下。Can I help you? 我能帮你吗? what can i do for you ?我有什么能帮到你吗?Don‘t worry. 别担心。Good luck! 祝好运! What time is it? 几点了? It‘s a fine day。 今天是个好天。You can make it! 你能做到! I have a good idea! 我有一个好主意How much does it cost? 多少钱? See you. 再见Be careful! 注意!I think so. 我也这么想Here you are. 给你What a pity! 太遗憾了!I'll try my best. 我尽力而为What does she like? 她喜欢什么?what's worry with you ?/What happened to you? 你怎么了?想到了这几句 应该蛮常用的~