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单项选择 适中0.65 引用2 组卷83
As the saying goes, “It’s never too late to learn,” My grandpa took up writing ________ the age of 70 and finished his novel ________ his eighties.
A.at, forB.by, atC.at, inD.by, for
22-23九年级上·江苏·期末
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