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it is often said that you can
答案：
答案：It is often said that you can't teach an old dog new tric...
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问答题
I have____read the book. A. already B. a year ago C. a short time ago D. last year
答案：
答案：A 解析： 选项A "already" 是一个副词，通常用于现在完成时态，表示某事已经发生。根据句子的结构...
