问题标题：
wewereatschoollastweek改为否定句和疑问句还有：Hewasasinger3yearsago改为否定句和疑问句YouwereinShanghaitwomonthsago改为否定句和疑问句好人帮帮我个四年级小学生
问题描述：
wewereatschoollastweek改为否定句和疑问句
还有：Hewasasinger3yearsago改为否定句和疑问句
YouwereinShanghaitwomonthsago改为否定句和疑问句
好人帮帮我个四年级小学生
唐明新回答：
否Hewasn'tasinger3yearsago.
疑问Washeasinger3yearsago?
否Youweren'tinshanghai2minthsago.
疑问Wereyouinshanghai2monthsago?
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