从下列每组单词中选出事同类的一个,并将ABCD序号填写到前面括号里。(1)A.pencil B.eraser C.ruler D.plane(2)A.pork B.fruit C.chicken D.fish(3)A.window B.hotel C.park D.school(4)A.blue B.yellow C.picture D.green(5)A.doctor B.sister C.driver D.nurse
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