试题 试卷
题型：单选题 题类：模拟题 难易度：困难
河北邯郸2019届育华中学九年级英语二模试卷
— That's true. Nobody can learn it well _______ he works hard at it.
All the lights suddenly went off {#blank#}1{#/blank#} he {#blank#}2{#/blank#} {#blank#}3{#/blank#}.
—Yeah. We have known each other ________ we started to study in primary school.
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