Hello! Anyone home? /Yes?

　　Hello! Is anyone there? /Excuse me!

　　Please come in!

　　Sorry I didn't call first.

　　Welcome!

　　How nice of you to come!

　　Thanks for inviting me.

　　 It's nice of you to come!

　　Thank you for coming.

　　Is anyone here?

　　What do you want?

　　What are you here for?

　　Please feel free to make yourself at home.

　　Make yourself at home.

　　Have a seat. --Oh, thank you.

　　Take a seat. /Please sit down.

　　Enjoy yourself! /Have a good time!

　　Would you care for something to drink?

　　Yes, I'll have a beer, please.

　　No, thank you.

　　Sorry, I'm too busy to talk to you now.

　　Don't mind me. I just came to see John.

　　May I use your bathroom?

　　Sure, go ahead.

　　Where's the bathroom?

　　Which way is the bathroom?

　　How can I get to the bathroom?

　　Could you tell me how to get to the bathroom?

　　May I use your phone?

　　Is it all right if I use your phone?

　　I'd better get going now.

　　I must be going now.

　　I have to leave now.

　　I gotta go now. *gotta= got to口语

　　Thank you for inviting me.

　　I'm glad you could come.

　　Thank you for inviting me.

　　Thanks so much for inviting us today.

　　Drop by sometime. 顺便拜访，串门

　　Did he send someone to see you?

　　No, he came to see me himself.

　　He came to see me personally.

　　Do you mind if I smoke? --No, not at all.

　　Would it bother you if I smoked?

　　Can I smoke? /Is it all right if I smoke?

　　Would it be okay to smoke?

　　I like your house.

　　I'm glad to hear that.

　　I really like your apartment.

　　Watch your step. /Mind your step.

　　Be careful where you walk.

　　Look where you're going.

　　The floor is slippery. 光滑、滑的

　　Please turn on the TV. turn on打开，turn off关上，turn up开大声音，turn down关小

　　Can I park my car here?

　　Is parking okay here?

　　Is it all right to park my car here?

　　Am I permitted to park my car here?