题目内容
His grandfather is ____eighty﹣year﹣old man, but he spends long hours ___ writing.
A. a, an B. an, on C. /, with D. an, in
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题目内容
His grandfather is ____eighty﹣year﹣old man, but he spends long hours ___ writing.
A. a, an B. an, on C. /, with D. an, in