Cocktail parties are popular for both business and social
            functiongs. They may be casual or formal and are often held between
            6:00 and 8:00 in the evening. Drinks and hors d'oeuvres or snacks
            are usually served.
            为商务和社交的目的举行鸡尾酒会是很普遍的事。酒会可能是非正式的，也可能是正式的，而且经常在晚上六点至八点间举行。酒会上通常招待各种饮料和开胃小吃或点心。

            1.A: Come in. It's nice to see you again.
            B: It's nice to be here.
            A: Would you care for a drink?
            B: Just a club soda for me，please.

            2.A: Hi! I'm happy you could make it.
            B: Well, I've been looking forward to seeing you.
            A: What can I get you?
            B: I'd love a gin and tonic.

            3.A: Good evening, I'm so happy you could come.
            B: Thank you for inviting me.
            A: What would you like to drink?
            B: A glass of white wine would be fine, thank you.

            4.A: Hello. It's a pleasure to see you again.
            B: Thank you. I've been looking forward to your party.
            A: You'll have a drink, won't you?
            A: I think I'll have a beer, if you have any