大师作文网九年级寒假英语
来源：学生作业帮 编辑：大师作文网作业帮 分类：英语作业 时间：2024/11/11 16:23:14
Chinese people invented the abacus in the sixth century改为被动语态 The abacus___ ____in the sixth century____chinese people.
解题思路： 首先阅读原句，确定句子的时态为一般过去时，一般过去时的被动语态结构为was\were +动词的过去分词。
解题过程：
Chinese people invented the abacus in the sixth century改为被动语态
The abacus_was__ __invented__in the sixth century__ by__chinese people.
最终答案：如上
解题过程：
Chinese people invented the abacus in the sixth century改为被动语态
The abacus_was__ __invented__in the sixth century__ by__chinese people.
最终答案：如上