2022年初中英语：一般过去时的构成知识点总结
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一般过去时的构成： 1) 肯定形式：S+动词过去式(v.+ed)+O. 2) 否定形式：S+助动词did not+动词原形+O. 3) 疑问形式：助动词Did +S.+动词原形+O. eg. Last week Tom helped his parents do housework at home (责任编辑：admin) |