根据提示,选择合适的内容补全句子。
(1) This is the ________ (teacher, teacher’s) desk.
(2) The pencil is _________ (on, in) the floor.
(3) She _________ (have, has) long hair.
(4) I have a new friend. He is _________ (friendly, friend).
(5) How many _________ (people, peoples) are there in your family?