Look and choose (选出一个与其它三个不属于同一类的单词,并将序号填入题前的括号里)。
(1)A.thirty B.fifty C.four D.too
(2)A.math B.English C.book D.Chinese
(3)A.blue B.ruler C.green D.purple
(4)A.tall B.sports C.strong D.quiet
(5)A.notebook B.floor C.wall D.door
(6)A.apple B.big C.pear D.orange
(7)A.cake B.car C.bike D.plane
(8)A.crayon B.sharpener C.pen D.picture
(9)A.cat B.peach C.rabbit D.duck
(10)A.friend B.father C.brother D.Grandpa