作业帮He saw his old friend yesterday.(改成一般疑问句)
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He saw his old friend yesterday.(改成一般疑问句)
He saw his old friend yesterday.(改成一般疑问句)
He saw his old friend yesterday.(改成一般疑问句)
Did he see his old friend yesterday?
Did he see his old friend yesterday？
Did he see his old friend yesterday?