选出下面每组中不属于同一类的单词.(5分)(1)A.daddy B.bear C.mummy(2)A.sister B.brother C.happy(3)A.mouse B.zero C.six(4)A.I B.teacher C.you(5)A.tiger B.monkey C.baby
( ) Usually Xiao Li spends________time doing homework than Xiao Chen does.
( ) Some animals were________in the daytime and________at night.
( )The woman is fifty, but she looks________.
( ) My friends are very________to me.
( ) Remember not to speak________when we are in the reading room.