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题型:单选题 题类:常考题 难易度:普通
——Because it's interesting.
— Sorry, I don't know.
一He is watching a basketball game on TV.
—He works in a hospital.
{#blank#}1{#/blank#}is spring {#blank#}2{#/blank#}in Canada?
{#blank#}1{#/blank#} are {#blank#}2{#/blank#} {#blank#}3{#/blank#} a vacation?
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