把下列句子单数改成复数 i am a teacher
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发布时间：2024-02-05 00:00
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时间：2024-02-12 17:17
1.These are rulers.
2.Those are oranges.
3.We are students.
4.They are policemen.
5.What are these boys' names?
二
1.Are you a teacher?No,I am not.
2.Are they policemen?No,they are not.
