Lucy's hat中,Lucy's 是名词所有格,为什么还要加hat?Lucy's hat 不就等于是是Lucy's吗?

Lucy's hat中,Lucy's 是名词所有格,为什么还要加hat?Lucy's hat 不就等于是是Lucy's吗? Lucy's hat __________a cat. It ____ (look)like Lucy's hat. Lucy's hat is red.Lily's hat is white.合并为一句 The colour of Lucy's hat is __ __ that of Lucy's. 把That is a hat.That is a Lucy's hat.That ia a Lucy's hat.改为特殊疑问句 Lucy's hat l_____ like a cat.怎么添?Why? 是Lucy favourite subject 还是Lucy's favourite subject Look at this hat. I think it's____. A:Lucy B:Lucy's C:her D:she 是Jane and Lucy's father is a teacher,还是Jane's and Lucy's?原因? she has more apples than ___.A.Lucy B.Lucy's C.Lucy's apples D.Lucy is正确答案是A 我想知道为什么 闲人勿进 Lucy's coat is n__,but Lucy's is o___ -----------------------------?That cat is Lucy's. -----------------------------?That cat is Lucy's. These two rooms are______ A. Lucy's and Lily's B. Lucy's or Lily's . 显示正确答案是B? 是Look at this photo of lucy's还是Look at this photo of lucy?原题是—Look at this photo of ___!Is there a smile onher face?—Yes,and this photo is the best one of ___.A.Lucy's Lucy'sB.Lucy LucyC.Lucy's LucyD.Lucy Lucy's第二空也是同样 Lucy's的s的读音 --whose watch is this ?---【 】,回答为什么不能是this is lucy‘s 而是it is lucy’s,请解释,谢谢 Lucy and Lily's father don't have a black hat改错1小时之内!写下理由