为什么不能说Whose is this book?我认为在Whose is this book中whose是对表语提问.而在Whose book is this中whose是对定语提问.

为什么不能说Whose is this book?我认为在Whose is this book中whose是对表语提问.而在Whose book is this中whose是对定语提问. :whose is this shirt为什么不能这样写啊 --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 this is kate,whose sister you met yesterday.为什么在sister后不能加whom?this is kate,whose sister whom you met yesterday.为什么不行？ whose bag is this 为什么这里用whose Whose dog is this 能不能说成 Whose is this dog 是whose toy bear is this?还是whose is this toy bear?为什么？ 是“whose backpack is this 还是“whose backpack this is 为什么? whose is this handbag?能不能换成whose hangbag is this?为什么? This is the mount of which the top is covered with snow all the year round.请问这里的of which为什么不能换成whose?还有就是of which在句子中做什么成分?我是说在从句中, Whose book is this? Whose ruler is this? whose is this book? “Whose room is this? Whose hat is this? 为什么不能说 This is my a pen whose是所有格,不能单独使用,后面一定要跟一个定语 whose shirt is this whose is this bag?和 whose bag is this?能不能说who owns/possessess/has this bag