读一读，选出不同类的单词。
(   )⑴A.door       B.window         C.book
(   )⑵A.strong     B.tall           C.schoolbag
(   )⑶A.notebook   B.Chinese book   C.candy
(   )⑷A.five       B.picture        C.nine
(   )⑸A.door       B.yellow         C.red