The government has announced to rescue the cultural heritage {#blank#}1{#/blank#}the cost.

→You have {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#}; I think you'd better lose weight.

→One of the UN goals is to {#blank#}1{#/blank#} {#blank#}2{#/blank#} that clean water is available to everyone .

→{#blank#}1{#/blank#} will have one of those periods when things seem to be going wrong. (用it作形式主语)

→{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#} {#blank#}5{#/blank#} {#blank#}6{#/blank#}  is that drinking too much {#blank#}7{#/blank#} {#blank#}8{#/blank#} {#blank#}9{#/blank#} your health. (harm)

{#blank#}1{#/blank#} {#blank#}2{#/blank#} human activity{#blank#}3{#/blank#} has led to global warming, which has aroused widespread concern.