Do you want to be a popular guest who gets invited back? Read our {#blank#}1{#/blank#} (六) top tips for being a good guest.

Clothes—if you arein a formal situation, dress smartly: a suit and tie for men, a {#blank#}2{#/blank#} (裙子) and jacket for women.

Gifts—if you are going to stay in someone's house,{#blank#}3{#/blank#} (带来) a small gift if you are staying for a {#blank#}4{#/blank#} (短的) period of time, a bigger gift for longer periods. {#blank#}5{#/blank#}(昂贵的) chocolate works in most situations. Don't arrive empty-handed.

Greetings—to shake hands or to {#blank#}6{#/blank#} (亲吻)? Wait to see what your host does.

Food—always accept it when offered. Try to eat all of it and say it {#blank#}7{#/blank#}  (品尝) good whether it looks terrible or delicious. Most people are {#blank#}8{#/blank#} (自豪的) of their cooking even if they shouldn't be. Don't hurt their feelings.

Titles—in formal situations, don't use first {#blank#}9{#/blank#}(名字). Always use titles (Doctor, Professor, Chairperson) until the person tells you not to.

Leaving—the most important tip for being a good guest is to know when to say goodbye. The {#blank#}10{#/blank#} (秘密) is to leave while the host is still enjoying your company and wants you to stay longer.

    What will our world be like in 2020? Maybe no one {#blank#}1{#/blank#} (知道). Because we never know what will happen in the {#blank#}2{#/blank#} (将来). But it's very interesting to make some {#blank#}3{#/blank#} (预言).

    Water will become as expensive as oil {#blank#}4{#/blank#}(因为) many rivers will disappear. We will have to {#blank#}5{#/blank#} (节约) water and pay more for {#blank#}6{#/blank#} (清洁的) water.

    Students won't go to school. They will stay at home and study {#blank#}7{#/blank#} (网上). Students from all over the world may study {#blank#}8{#/blank#} (一起) on the Internet. And more {#blank#}9{#/blank#} (机器人)will be around us. They will do lots of dangerous(危险的) {#blank#}10{#/blank#} (家务) for people.