“she had to wash the dishes after meals”怎么改成否定句和一般疑问句?
问题描述：
“she had to wash the dishes after meals”怎么改成否定句和一般疑问句?
答
she did not have to wash the dishes after meals
Did she have to wash the dishes after meals?
答
Did she have to wash the dishes after meals?
答
否定句:she didn't have to wash the dishes after meals.
一般疑问句:Did she haveto wash the dishes after meals?
含有助动词的肯定句,该否定句就是根据时态在前面加上don't或者didn't
改为一般疑问句,就是将助动词提前