As the saying goes, one is never too old to learn. After he _____, he will devote himself to garden...
2023-02-14 22:50:09 50次 江西省重点中学盟校2010届高三第二次联考 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
As the saying goes,
one is never too old to learn. After he _____, he will devote himself to
gardening.
A.
retired B. has
retired C. will
retire
D. had
retired
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