It's the busiest season in China{#blank#}1{#/blank#}the Spring Festival.

We should{#blank#}1{#/blank#} vegetables{#blank#}2{#/blank#} we can．

Peter often{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#}some after-school activities.

{#blank#}1{#/blank#} up the free-trade zone{#blank#}2{#/blank#} new opportunities to this city.

People should {#blank#}1{#/blank#} their {#blank#}2{#/blank#} {#blank#}3{#/blank#} saving the endangered animals.