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问题详情

By the time he was 12, Edison ______ to make a living by himself. ( )

A、would begin

B、has begun

C、had begun

D、was begun

时间：2021-07-17 23:17 关键词：护理学专升本英语（下） 20级第2学期-期末考试大连工业大学工商企业管理高起专大学英语2 作业1

答案解析

C

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