保证准确!
1.= Harry Potter is from Britain.
2.No,I'm not.
3.= They are in the same class as I/me.
或：I‘m their classmate.
或：They and I are in the same class.
4.Is Daniel 12 years old?
5.Do you often play football after school?
6.Jim seldom has a big of milk for breakfast.
或：Jim doesn't usually have a big of milk for breakfast.