1、Be动词否定
在am、is、are、was、were后面加not
I am not back.
The man isn't back.
They aren't back.
He wasn't back.
They weren't back.
2、使用Be动词提问和回答
- Is he a teacher?
- Are you a teacher?
- Were they teachers?
3、Be动词否定练习
- 他是医生吗?
- 他们昨天在教室吗?
- 他们昨天不在教室。
在am、is、are、was、were后面加not
I am not back.
The man isn't back.
They aren't back.
He wasn't back.
They weren't back.
本文标题:三、Be动词的否定和提问
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