was和did用法分不清
回答
爱扬教育
2022-01-16
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did是过去式的助动词,通常表示发生在过去的动作,后边跟名词作宾语。
扩展资料
如:
He was a student ten years ago.
He was doing his homework at nine last night .
He did his homework just now.
Did he do his homework just now ?