===英语 找出句子中的错误===

1.your
2.an
3.watchs
4.hours

What is you favourite food →whatis your favourite food？
There is a old book in my bag →There is an old book in my bag.
He often watch folk dances →He often watches folk dances .
It is three hour by piane →these are three hours by plane.

1。you--- your
2. a--- an
3.watch--- watches
4.hour---hours

your
an
watches
hours