Whose toy is this?改成复数句

Whose toy is this?改成复数句 this,whose,toy,is,bear(?) 是whose toy bear is this?还是whose is this toy bear?为什么？ toy bear this whose is[连词成句]快 Whose knife is this?(改成复数) whose is this dog(改成同义句) Who is this toy car from?对不对?-- ~ is this toy car from?-- My grandpa A. Who B.Whose c.What ~代表空格 This is your present. 改成问句： ( ) present ( ) this? 是不是(Whose) present (is) this? 连词成句 this,whose,toy,is,bear(第一句) is,Su,Hai's,black,skirt,white,and(第二句) this is my toy.复数 Whose book is this? Whose ruler is this? whose is this book? “Whose room is this? Whose hat is this? 如何把Whose school bag is this?改成同意句(相同意思)拜托各位大神 whose cell phone is this 把这改成 Do you have any idea__________ 的宾语从句. 把下面的英语句子改成同义句.Whose book is this?