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.