Is there life on other planets? There are seven other planets in our {#blank#}1{#/blank#} system, but {#blank#}2{#/blank#} of them has an environment like that of the {#blank#}3{#/blank#}. Spaceships   from the earth have done surveys of the other planets, but they have not found any life there. Why has no one from other planets tried to {#blank#}4{#/blank#} with us? It is true that scientists have not discovered life on other planets in the {#blank#}5{#/blank#} yet, but some scientists believe that they will find it some day.

①[ ju: ]{#blank#}1{#/blank#}     A.yes

②[ ɑ:(r) ]{#blank#}2{#/blank#}       B.now

③[ jes ]{#blank#}3{#/blank#}       C.are

④[ əʊ'keɪ ]{#blank#}4{#/blank#}      D.you

⑤[ maɪ ]{#blank#}5{#/blank#}       E.see

⑥[ kæn ]{#blank#}6{#/blank#}       F.his

⑦[ si: ]{#blank#}7{#/blank#}        G.my

⑧[ naʊ ]{#blank#}8{#/blank#}        H.two

⑨[ tu: ]{#blank#}9{#/blank#}        I.can

⑩[ hɪz ]{#blank#}10{#/blank#}         J.OK