How ------- professors speak english,

How ------- professors speak english,

1. Don't dare talk in front of my back!
2.Both of u three get out of the class!
3.Why r u so late.. say yes or no?
4.Take 5 cm wire of any length!
5.I have 2 daughters, both of them are girls.
6.All of u stand in a straight circle.
7.Quiet! The principal just passed away...
8.Everybuddy stand lengthwise.
9.Y r u looking at the monkey outside da window wen I'm here?
10.Ur talking bad habbit.