David's success didn't come {#blank#}1{#/blank#}  {#blank#}2{#/blank#} . It was the result of his hard work.

Li Hua and his friends are{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#}now.

{#blank#}1{#/blank#} that dog．It may bite you．

{#blank#}1{#/blank#} {#blank#}2{#/blank#}a fantastic experience {#blank#}3{#/blank#} {#blank#}4{#/blank#} {#blank#}5{#/blank#} {#blank#}6{#/blank#} an educational exchange.

As far {#blank#}1{#/blank#} I know, Jim was the first{#blank#}2{#/blank#} {#blank#}3{#/blank#} the top of the mountain.

{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} contest it is! We {#blank#}4{#/blank#} holding such contests every term.