When meet someone I know, I would say:- -你好嗎? (How are you?)/ 你食咗飯未呀? (Have you eaten yet?)/好耐唔見 (long time no see)

When you meet somebody: "How do you do?" or "Pleased to meet you." Pleased to meet you too. Are you from.....? Nice to see you. Long time no see. (I haven't seen you in a while.) What have you been up to? How are things? It's been a while. (It's been a while since I've seen you.) What's new? Not much. (answer to What's new?)

Hello 阿忠 ā zhōng, When you are traveling in a foreign city and need help: "Can you recommend a good restaurant around here?" " How do I get to ......... ( a certain place) from here?" " Do I have to change trains?" "How much is the ticket?" "Is this the only bus station in the city?" " Do you have a schedule I could look at ?" " Are there any buses going to ...... today?" " What time does the Museum open (close) today?"

in hospital could you call adoctor? where i can find an oculist ? does his situation require taking medicine? does my sister have to stay in the hospital for several days? is her treatment going to take along time? is the disease contagious? is there a vaccine for this disease? how much time does the treatment take? what do u complain of ?

You could use the following website to learn a lot of everyday expressions that can be used in different situations: www.eslfast.com