{#blank#}1{#/blank#}

Bill was put into a position {#blank#}1{#/blank#} {#blank#}2{#/blank#} he had to {#blank#}3{#/blank#} accept he was less important, {#blank#}4{#/blank#}pack up and leave right away.

The animals there are lovely, but {#blank#}1{#/blank#} the number of them is decreasing year by year. (宾语从句)

The animals there are lovely, but {#blank#}2{#/blank#} the number of them is decreasing year by year. (主语从句)

Such is human nature that many people don't {#blank#}1{#/blank#} the things they process until they have lost them.

{#blank#}1{#/blank#}he got angry,his voice remained level.