陈述句变否定句 They often sweep the floor My father often read some books.There are some pens
问题描述：
陈述句变否定句 They often sweep the floor My father often read some books.There are some pens
答
They don't often sweep the floor .
My father doesn't often read some books.
There are not some pens
答
They do not often sweep the floor.
My father does not often read any books.
There are not any pens.