At the lesson I saw something name doorknoobs.And I do not know what is doorknoob.Couse I live at Turkey.Never mind then yesterday my class learn what is a doorknoob.I do not now what is a doorknoob because I am not at that leson yesterday.Then today we talk abaut doorknoobs.First I hear that word,I think if we substarct k from doorknoobs we will have a noob door a door like me:NOOB