【题目】I often read books in the library last year.（改为一般疑问句）
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【答案】Did you read books in the library last year?
【解析】
句意：去年我经常在图书馆看书。分析句子是一般过去时且含有实义动词，变一般疑问句要借助助动词did，实义动词变原形（read原形和过去式一样），I变you。故答案为Did you read books in the library last year?
