_the age of fifteen,she had written scores of articles for a newspaper.中填at还是by,

分类: 作业答案 • 2022-01-01 11:44:49

问题描述：

___the age of fifteen,she had written scores of articles for a newspaper.__中填at还是by,

答

by,因为后面用的是完成时,用at则构成过去的时间状语,我i应该用一般过去时

___the age of fifteen,she had written scores of articles for a newspaper.__中填at还是by,