① {#blank#}1{#/blank#}     boy        brother     sister      mother

② {#blank#}2{#/blank#}     Sally        Tim        Jim        Tom

③ {#blank#}3{#/blank#}     old        young        cold        tall

④ {#blank#}4{#/blank#}    nine        fine        five       four

①{#blank#}1{#/blank#}A．three  B．first    C．second

②{#blank#}2{#/blank#}A．football  B．playground  C．basketball

③{#blank#}3{#/blank#}A．time    B．lunch    C．dinner

④{#blank#}4{#/blank#}A．rainy    B．sunny    C．funny

⑤{#blank#}5{#/blank#}A．warm  B．hot    C．tall

  The Earth was{#blank#}1{#/blank#}and{#blank#}2{#/blank#}in the past，but now some parts are{#blank#}3{#/blank#}．We should stop throwing{#blank#}4{#/blank#}into rivers．We should stop cutting{#blank#}5{#/blank#}so many trees and using{#blank#}6{#/blank#}bags．