His grandfather is ____eighty﹣year﹣old man， but he spends long hours ___ writing． A. a， an B. an， on...
2022-09-25 18:10:35 173次 江西省上饶市2017-2018学年七年级（下）期末英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
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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