The first chocolate was enjoyed by the people in Central and South America hundreds of years ago. In those days, the cocoa bean(可可豆){#blank#}1{#/blank#} to make a chocolate drink.

    In 1824, Mr. Cadbury opened a small shop in the United Kingdom. He {#blank#}2{#/blank#}chocolate drink. In 1831, he opened a factory to make chocolate drink. Mr. Cadbury believed that wine was bad and he wanted to encourage people to drink chocolate instead. A few years later, a man invented a way to, make chocolate bars (块), and so people had the chance to eat chocolate instead of only{#blank#}3{#/blank#}it.

    At first only dark chocolate was made. Milk chocolate came later and it was made by adding milk to the chocolate. Mr. Cadbury made their first milk chocolate bar in 1897. Their most famouschocolate, Cadbury Milk Bar, was made in 1905. It{#blank#}4{#/blank#}popular for over 100 years．The Cadbury factory still {#blank#}5{#/blank#}chocolate in the United Kingdom now and the chocolate is eaten all over the world. Every year, thousands of visitors go to the factory{#blank#}6{#/blank#}how chocolate is made．

A: Have you ever been to America?

B: Yes.

A: Well, I will go to an American friend's home to celebrate Christmas tomorrow, Could you please tell me what I am {#blank#}1{#/blank#} to do?

B: OK, with pleasure.

A: Should I arrive on time or five to ten minutes late?

B: Both are OK. But don't get there {#blank#}2{#/blank#}.

A: I'm {#blank#}3{#/blank#} that traffic might be terrible.

B: Well, if you're more than fifteen minutes late, it right be a good idea to call the host and tell him or her you're going to be late.

A: OK. Should I {#blank#}4{#/blank#} any flowers?

B: Certainly. Flowers are always welcome.

A: What should I do at dinner?

B: Watch the other {#blank#}5{#/blank#} and do what they do. You'll be OK.

A: I see. Thanks a lot.

B: You're welcome.