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题型：单选题 题类：常考题 难易度：容易
—That's quite a long time. There must be too many people waiting in line.
{#blank#}1{#/blank#} Mike {#blank#}2{#/blank#} Tom are good at I Chinese.
{#blank#}1{#/blank#} {#blank#}2{#/blank#}, millions of people {#blank#}3{#/blank#} {#blank#}4{#/blank#} it.
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