问题描述：
===英语 找出句子中的错误===
1.What is you favourite food
2.There is a old book in my bag
3.He often watch folk dances
4.It is three hour by piane
谢谢了
1.What is you favourite food
2.There is a old book in my bag
3.He often watch folk dances
4.It is three hour by piane
谢谢了
问题解答：
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