问题描述：
过去式造句,主谓宾 主系表各造句三个,并转换.额很急的说.
问题解答：
我来补答
1.I played football last Sunday
I didn't play football last Sunday.
Did you play football last Sunday?
2.They cleaned the classroom yesterday.
They didn't clean the classroom yesterday.
Did they clean the classroom yesterday?
3.Mike watched TV yesterday evening.
Mike didn't watch TV yesterday evening.
Did Mike watch TV yesterday evening?
主系表
1.I was at school yesterday.
I wasn't at school yesterday.
Were you at school yesterday?
2.They were in Grade One last year.
They weren't in Grade One last year.
Were they in Grade One last year?
3.Mary was an English girl.
Mary was not an English girl.
Was Mary an English girl?
