Helen did her homework last night.(否定句）
问题描述：
Helen did her homework last night.(否定句）
答
Helen didn't do her homework last night
答
Helen,diden't do her homework last night.祝全家幸福。
答
Helen didn't do her homework last night.
祝你开心。
答
Helen didn't do her homework last night.
答
Helen didn't do her homework last night.(
答
helen didn't do her homework last night
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