—How long has this bookshop been in business?— ______ 1982.

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问题 —How long has this bookshop been in business?— ______ 1982.

选项 A、After
B、In
C、From
D、Since

答案D

解析 介词since后接时间点或表时间点概念的名词或事件意为“从……时间延续到现在”常与完成时连用,上下文呼应。after in,from均与过去式连用。
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